Question

20°,Measure of one angle of linear pair is given. Find the measure of another angle.

Answer 1

For Linear pair

The Sum of two angles = 180°

so X + Y = 180°

Given Angle = X = 20°

so

20° + Y = 180°

Y = 180° - 20°

Y = 160°

So. other angle of the Linear pair is 160°

Answer 2

Solution :

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A pair of adjacent angles are said

to be a linear pair of angles if their

sum is 180° .

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Here ,

one angle ( x ) = 20°

Let Second angle = y

x + y = 180°

=> y = 180° - x

=> y = 180° - 20°

=> y = 160°

Therefore ,

Linear pair of 20° = y = 160°

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