Question

One angle of linear pair is a right angle, then find the measure of another angle.

Answer 1

For Linear pair

The Sum of two angles = 180°

so X + Y = 180°

Given Angle = X = 90°

Because Right Angle = 90°

so

90° + Y = 180°

Y = 180° - 90°

Y = 90°

So. other angle of the Linear pair is 90°

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 ) = 90°

Let the second angle = y

x + y = 180°

=> y = 180° - x

=> y = 180° - 90°

=> y = 90°

Therefore ,

Measure of second angle ( y ) = 90°

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