Class 6 Maths Practice Question Answers - Practical Geometry

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Q1: Angles of set squares are 45, 90 and ____.
(a) 60
(b) 75
(c) 30
(d) 90
Ans: (b)
Set squares come in two forms, both right triangles, it has 90-45-90 degree angles. Therefore the third angle here will be 90 degree.

Q2: A ________ is the longest chord of a circle.
(a) diameter
(b) radius
(c) none of these
(d) chord
Ans: (a)
A diameter joins two points on the circle and so it is a chord. The diameter also passes through the centre of the circle and is the longest chord of the circle.

Q3: If the radius of a circle is 8.5 cm, then the diameter of the circle is ____.
(a) None of these
(b) 17 cm
(c) 12 cm
(d) 8.5 cm
Ans: (b)
Diameter is twice the radius.
Diameter = radius x 2 = 8.5 x 2 = 17 cm

Q4: If the radius of a circle is 3 cm, then the diameter of the circle is ____.
(a) 1.5 cm
(b) None of these
(c) 6 cm
(d) 3 cm
Ans: (c)
Diameter is twice the radius.
Diameter = radius x 2 = 3 x 2 = 6 cm

Q5: If the radius of a circle is 5.5 cm, then the diameter of the circle is ____.
(a) 11 cm
(b) 5.5 cm
(c) 12 cm
(d) None of these
Ans: (a)
Diameter is twice the radius.
Diameter = radius x 2 = 5.5 x 2 = 11 cm

Q6: To bisect a line segment of length 5cm, the opening of the compass should be more than half of ________.
Ans: 5cm

Q7: In an isosceles ∆PQR, the bisector of ∠Q and ∠R meet at O. If ∠QOR = 140°, then ∠P = ______.
Ans: 100°

Q8: Two line segments are compared in terms of their lengths. true or false
Ans: True

Q9: When a ray makes one complete rotation, the measure of angle formed is 90°. true or false
Ans: False

Q10: With the help of compasses we can draw 80°. true or false
Ans: False