Page 138 - Math Genius C5

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\ 08-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

Chapter assessment

1. Tick () the correct option.
( a) Each of the following is smaller than a straight angle except the ___________.
(i ) acute angle (ii ) obtuse angle

(iii ) reflex angle (iv) right angle

( b) How many degrees does the minute hand of a clock turn through in one hour?
(i ) 90° (ii ) 180° (iii ) 270° (iv) 360°

( c) 2 complete angles have
(i ) 4 right angles (ii ) 3 right angles

(iii ) 6 right angles (iv) 8 right angles
( d) The maximum number of points of intersection of two non-parallel lines is

(i ) 1 (ii ) 2 (iii ) 3 (iv) infinite
2. In the given figure, name the following:

( a) Any five points (b) Any three rays
( c) Any four line segments (d) Any two lines
3. Write the names of five line segments in the given figure.
A B C D E Z W C B b a

4. In the adjacent figure, name all the pairs of: Y A c
( a) intersecting lines X
( b) parallel lines O q p
5. In the given figure, numerals are used to name angles, e.g., ∠1 = D r
∠AOB. Give the full names for the following angles: C

(a) ∠1 + ∠2 (b) ∠1 + ∠3 3 B
( c) ∠2 + ∠3 (d) ∠1 + ∠2 + ∠3 2 1
6. Which pairs of lines are parallel lines and intersecting lines in each O A
of the following English letters?
( a) ( b) q r ( c)
l p s

c

n
p a b
7. In the given figure: P
( a) Identify three triangles.

(b) Write the names of seven angles. S
( c) Write the names of six line segments.
( d) Which two triangles have ∠S as common?
Q R

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