In the given figure, AOB is a straight line. If ∠AOC = 4x° and ∠BOC = 5x°, then ∠AOC = ?

Question

In the given figure, AOB is a straight line. If ∠ AOC = 4x° and ∠ BOC = 5x ° , then ∠ AOC = ?

Philoid · Accepted Answer

As we know that sum of adjacent angle on a straight line is 180^o.

According to question,

,

4x + 5x = 180^o

9x =180^o

X =20^o