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All questions of Geometry for Class 1 Exam
Which term describes a shape that has all sides and angles equal?- a)Similar
- b)Congruent
- c)Equilateral
- d)Symmetric
Correct answer is option 'C'. Can you explain this answer?
Which term describes a shape that has all sides and angles equal?
a)
Similar
b)
Congruent
c)
Equilateral
d)
Symmetric
|
Keystone Instructors answered |
An equilateral shape has all sides and angles equal.
Which solid shape has six rectangular faces?- a)Rectangular Prism
- b)Cylinder
- c)Cuboid
- d)Pyramid
Correct answer is option 'C'. Can you explain this answer?
Which solid shape has six rectangular faces?
a)
Rectangular Prism
b)
Cylinder
c)
Cuboid
d)
Pyramid
|
Learning Enablers answered |
A cuboid (also known as a rectangular prism) is a three-dimensional shape with:
- 6 rectangular faces (opposite faces are equal and parallel).
- 12 edges (line segments where two faces meet).
- 8 vertices (points where edges meet).
What shape is formed by all points equidistant from a given point?- a)Triangle
- b)Square
- c)Circle
- d)Rectangle
Correct answer is option 'C'. Can you explain this answer?
What shape is formed by all points equidistant from a given point?
a)
Triangle
b)
Square
c)
Circle
d)
Rectangle
|
Nitin naidu answered |
Understanding Equidistant Points
When we talk about all points that are equidistant from a given point, we are describing a specific geometric shape. Let’s explore what this means.
Definition of Equidistant
- Equidistant refers to points that are the same distance away from a specific point, known as the center or focus.
Shape Formed
- The shape formed by all these equidistant points is a circle.
Why a Circle?
- A circle is defined as the set of all points in a plane that are at a fixed distance (the radius) from a central point (the center).
Characteristics of a Circle
- Center: The specific point from which all other points are measured.
- Radius: The constant distance from the center to any point on the circle.
- Uniform Distance: Every point on the circumference of the circle is the same distance from the center.
Conclusion
- Therefore, when you consider all points that are equidistant from a single point, you form a circle. This is distinct from other shapes like triangles, squares, or rectangles, which do not maintain a constant distance from a single point.
In summary, the correct answer is indeed option 'C', a circle, as it perfectly illustrates the concept of equidistance from a central point.
When we talk about all points that are equidistant from a given point, we are describing a specific geometric shape. Let’s explore what this means.
Definition of Equidistant
- Equidistant refers to points that are the same distance away from a specific point, known as the center or focus.
Shape Formed
- The shape formed by all these equidistant points is a circle.
Why a Circle?
- A circle is defined as the set of all points in a plane that are at a fixed distance (the radius) from a central point (the center).
Characteristics of a Circle
- Center: The specific point from which all other points are measured.
- Radius: The constant distance from the center to any point on the circle.
- Uniform Distance: Every point on the circumference of the circle is the same distance from the center.
Conclusion
- Therefore, when you consider all points that are equidistant from a single point, you form a circle. This is distinct from other shapes like triangles, squares, or rectangles, which do not maintain a constant distance from a single point.
In summary, the correct answer is indeed option 'C', a circle, as it perfectly illustrates the concept of equidistance from a central point.
What is the perimeter of a circle called?- a)Diameter
- b)Radius
- c)Circumference
- d)Arc
Correct answer is option 'C'. Can you explain this answer?
What is the perimeter of a circle called?
a)
Diameter
b)
Radius
c)
Circumference
d)
Arc
|
|
Keystone Instructors answered |
The circumference is the perimeter or the distance around a circle.
How many faces does a cube have?- a)4
- b)5
- c)6
- d)8
Correct answer is option 'C'. Can you explain this answer?
How many faces does a cube have?
a)
4
b)
5
c)
6
d)
8
|
|
Keystone Instructors answered |
A cube has six faces, all of which are squares.
What is a parallelogram with four equal sides called?- a)Square
- b)Rectangle
- c)Rhombus
- d)Trapezium
Correct answer is option 'C'. Can you explain this answer?
What is a parallelogram with four equal sides called?
a)
Square
b)
Rectangle
c)
Rhombus
d)
Trapezium
|
|
Keystone Instructors answered |
A rhombus is a parallelogram with all four sides of equal length.
What type of angle is greater than 90 degrees but less than 180 degrees?- a)Acute
- b)Right
- c)Obtuse
- d)Straight
Correct answer is option 'C'. Can you explain this answer?
What type of angle is greater than 90 degrees but less than 180 degrees?
a)
Acute
b)
Right
c)
Obtuse
d)
Straight
|
|
Keystone Instructors answered |
An obtuse angle measures more than 90 degrees but less than 180 degrees.
What is the sum of the exterior angles of any polygon?- a)180 degrees
- b)360 degrees
- c)540 degrees
- d)720 degrees
Correct answer is option 'B'. Can you explain this answer?
What is the sum of the exterior angles of any polygon?
a)
180 degrees
b)
360 degrees
c)
540 degrees
d)
720 degrees
|
|
Keystone Instructors answered |
The sum of the exterior angles of any polygon, one per vertex, is always 360 degrees.
What is the measure of a straight angle?- a)90 degrees
- b)180 degrees
- c)270 degrees
- d)360 degrees
Correct answer is option 'B'. Can you explain this answer?
What is the measure of a straight angle?
a)
90 degrees
b)
180 degrees
c)
270 degrees
d)
360 degrees
|
|
Keystone Instructors answered |
A straight angle measures 180 degrees.
What is the name of a polygon with eight sides?- a)Hexagon
- b)Heptagon
- c)Octagon
- d)Decagon
Correct answer is option 'C'. Can you explain this answer?
What is the name of a polygon with eight sides?
a)
Hexagon
b)
Heptagon
c)
Octagon
d)
Decagon
|
|
Keystone Instructors answered |
An octagon is a polygon with eight sides.
What shape has four equal sides and four right angles?- a)Rectangle
- b)Parallelogram
- c)Square
- d)Rhombus
Correct answer is option 'C'. Can you explain this answer?
What shape has four equal sides and four right angles?
a)
Rectangle
b)
Parallelogram
c)
Square
d)
Rhombus
|
|
Keystone Instructors answered |
A square has four equal sides and all interior angles are 90 degrees.
What is the term for a three-dimensional shape with two parallel circular bases?- a)Sphere
- b)Cone
- c)Cylinder
- d)Pyramid
Correct answer is option 'C'. Can you explain this answer?
What is the term for a three-dimensional shape with two parallel circular bases?
a)
Sphere
b)
Cone
c)
Cylinder
d)
Pyramid
|
|
Keystone Instructors answered |
A cylinder has two parallel circular bases connected by a curved surface.
What do you call a three-dimensional figure with a circular base and a single vertex?- a)Cylinder
- b)Sphere
- c)Cone
- d)Pyramid
Correct answer is option 'C'. Can you explain this answer?
What do you call a three-dimensional figure with a circular base and a single vertex?
a)
Cylinder
b)
Sphere
c)
Cone
d)
Pyramid
|
|
Keystone Instructors answered |
A cone has a circular base and tapers to a single point (vertex).
In which type of triangle are all sides different lengths?- a)Equilateral
- b)Isosceles
- c)Scalene
- d)Right
Correct answer is option 'C'. Can you explain this answer?
In which type of triangle are all sides different lengths?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
|
|
Keystone Instructors answered |
A scalene triangle has all sides of different lengths.
What is a line segment that connects two points on a circle called?- a)Radius
- b)Diameter
- c)Chord
- d)Tangent
Correct answer is option 'C'. Can you explain this answer?
What is a line segment that connects two points on a circle called?
a)
Radius
b)
Diameter
c)
Chord
d)
Tangent
|
|
Keystone Instructors answered |
A chord is a line segment that connects two points on a circle.
What is the name of a polygon with 12 sides?- a)Decagon
- b)Dodecagon
- c)Hexagon
- d)Nonagon
Correct answer is option 'B'. Can you explain this answer?
What is the name of a polygon with 12 sides?
a)
Decagon
b)
Dodecagon
c)
Hexagon
d)
Nonagon
|
|
Keystone Instructors answered |
A dodecagon is a polygon with 12 sides.
What is the longest side of a right triangle called?- a)Hypotenuse
- b)Adjacent
- c)Opposite
- d)Altitude
Correct answer is option 'A'. Can you explain this answer?
What is the longest side of a right triangle called?
a)
Hypotenuse
b)
Adjacent
c)
Opposite
d)
Altitude
|
|
Keystone Instructors answered |
The hypotenuse is the longest side in a right triangle, opposite the right angle.
What type of triangle has one right angle?- a)Acute triangle
- b)Obtuse triangle
- c)Right triangle
- d)Isosceles triangle
Correct answer is option 'C'. Can you explain this answer?
What type of triangle has one right angle?
a)
Acute triangle
b)
Obtuse triangle
c)
Right triangle
d)
Isosceles triangle
|
|
Keystone Instructors answered |
A right triangle has one angle that measures 90 degrees.
Which type of quadrilateral has only one pair of parallel sides?- a)Square
- b)Rectangle
- c)Parallelogram
- d)Trapezium
Correct answer is option 'D'. Can you explain this answer?
Which type of quadrilateral has only one pair of parallel sides?
a)
Square
b)
Rectangle
c)
Parallelogram
d)
Trapezium
|
|
Keystone Instructors answered |
A trapezium (also known as a trapezoid) has only one pair of parallel sides.
What is the sum of the interior angles of a triangle?- a)90 degrees
- b)180 degrees
- c)360 degrees
- d)270 degrees
Correct answer is option 'B'. Can you explain this answer?
What is the sum of the interior angles of a triangle?
a)
90 degrees
b)
180 degrees
c)
360 degrees
d)
270 degrees
|
Kds Coaching answered |
- Draw a triangle ABC.
- Extend one side, say BC, to form a straight line.
- At vertex A, draw a line parallel to BC.
- You’ll see that the two other angles of the triangle (∠B and ∠C) “fit” along with ∠A on the straight line.
- A straight line measures 180°.
- Therefore, ∠A + ∠B + ∠C = 180°.
Chapter doubts & questions for Geometry - Mental Maths 2025 is part of Class 1 exam preparation. The chapters have been prepared according to the Class 1 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 1 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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