Question

In the given figure, AOB is a straight line and the ray OC stands on
it.
If ZAOC = (2x - 10)° and ZBOC = (3x +20)º, find the value of x.
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Answer 1

Answer:

we know that sum of angles in a straight line is,

∠AOB+∠BOC=180°

(2x-10°)+(3x+20°)=180°

5x+10°=180°

5x=170°

x=34°

Hope it helps u......