Question

the measures of two vertically opposite angles are 140° and (X+40°) respectively,Find the value of X.
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Answer 1

Answer:

The measures of two vertically opposite angles are 140° and (X+40°) respectively.

Find the value of X.

Ans.

Given:

1st angle=140°

2nd angle=(x+40°)

To find:

The value of x=?

Property:

The measures of any 2 vertically opposite angles is always supplementary(180°).

Solution:

140°+(x+40°)=180°

140°+x+40°=180°

x+180°=180°

x=180°-180°

x=0°

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Answer 2

vertically opposite angles will be same

140=X+40

140-40=X

100=X