Class 5 Exam > Class 5 Videos > Mathematics for Class 5: NCERT > Introduction to Shapes and Angles
Introduction to Shapes and Angles Video Lecture | Mathematics for Class 5: NCERT
FAQs on Introduction to Shapes and Angles Video Lecture - Mathematics for Class 5: NCERT
| 1. What is a shape? |  |
A shape is a two-dimensional figure that has specific boundaries, such as a circle, triangle, square, or rectangle. It is defined by its outline or edges.
| 2. What are angles? | |
Angles are formed when two lines or rays meet at a common point called the vertex. They are measured in degrees and represent the amount of rotation between the two lines or rays.
| 3. How many types of angles are there? | |
There are several types of angles, including acute angles (less than 90 degrees), obtuse angles (between 90 and 180 degrees), right angles (exactly 90 degrees), and straight angles (exactly 180 degrees).
| 4. How do you measure angles? | |
Angles are measured using a protractor. The protractor is placed on the vertex of the angle, and the rays or lines are aligned with the protractor's scale. The degree measure where the second line intersects the protractor is the measurement of the angle.
| 5. What is the sum of angles in a triangle? | |
The sum of angles in a triangle is always 180 degrees. This is known as the Triangle Sum Theorem. Regardless of the type of triangle (equilateral, isosceles, or scalene), the sum of the three angles will always equal 180 degrees.
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