New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 11

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In the figure, line $P Q$ and $R S$ intersect at $O$ .
$∠ Q O R = 44 °$ . Find $∠ x, ∠ y$ and $∠ z$ .

Important Questions on Lines and Angles

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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 12

In the given figure, find the value of $y$ .

(Write the numerical value of angle as an answer without degree symbol)

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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 13

In the given figure, if $∠ A O C + ∠ B O D = 242 °$
Find all four angles.
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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 14

In the given figure if

∠ P O R + ∠ Q O R + ∠ Q O S = 312 °

, find all the four angles.
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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 15

In the given figure,

A B

and

C D

are two lines intersecting each other at point

' O'

.
If

∠ C O E = 90 °

, find the values of

x, y

and

z

.

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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 16

The value of

x

in the given figure is
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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Exercise>Q 17

Find the value of

x

.

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New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Revision Exercise>Q 1

Angles forming a linear pair are supplementary.

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IMPORTANT

New Mathematics Today Class 7>Chapter 14 - Lines and Angles>Revision Exercise>Q 1

If two angles are equal and complementary, then each angle is

45 ° .