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\ 10-Nov-2025 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

3. Name the rays in these figures:
a. b. R c. A P B
B
Q S

C P O H C D
A O T G
W F
D V U
E
______________ ______________ ______________

______________ ______________ ______________

4. What is the length of each line segment?

A B
a. _____ cm
b. C D _____ cm
P Q
c. _____ cm

d. R S _____ cm
T U
e. _____ cm
V W
f. _____ cm

5. draw line segments of the given lengths.

a. AB = 4 cm b. CD = 9 cm c. EF = 6 cm

ANGle

Sahil is playing with paper strips. He has created the following things:

Two strips are meeting at a point and forming an angle. Similarly, when two lines meet
at a point, they create an angle.
In the adjacent figure, rays OA and OB meet at point O. They form A
an angle.

The rays forming an angle are called its arms, and the point where Arm
the arms meet is called its vertex. O Angle B

Here, OA and OB are the arms of angle AOB and O is the vertex. Vertex Arm

Angle AOB is denoted as ∠AOB or ∠BOA or ∠O, where ‘∠’ is the symbol for an angle.

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Geometry