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E:\Working\Orange_Education\TouchPad_Maths-5\Open file\Maths_5_Chapter-05
\ 19-Nov-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

6. Write three names for each of the following angles using symbols and letters. one
has been done for you.

a. b. c. Y
L H
G Z
X
M N E
∠LMN
____________ ____________ ____________

∠NML
____________ ____________ ____________
∠M
____________ ____________ ____________

7. look at the given figure and name the following angles:

a. an acute angle. ________________________ A D

b. a right angle. ________________________

c. a straight angle. ________________________ B E

d. an obtuse angle. ________________________ C

Turn THe Angle

A turn involves rotating an object in any direction around a fixed point. Turns are closely
related to angles, as each turn corresponds to a specific angle measure. There are 360
degrees in a complete turn. Let us see how half, quarter, three-quarter and full turns

are represented.

1 turn is 90° 1 turn is 180° 3 turn is 270° 1 turn is 360°
4 2 4
(4 right angles)
(1 right angle) (2 right angles) (3 right angles)

114 Mathematics 5