Question 7: In ∆ABC, bisectors of ∠A and ∠B intersect at point O. If ∠C = 70° . Find measure of ∠AOB.

Question 7: In ∆ABC, bisectors of ∠A and ∠B intersect at point O. If ∠C = 70° . Find measure of ∠AOB.

If the bisectors of ∠X and ∠Y of a △XYZ intersect at point O, then $\frac{}{}$
$\frac{}{}\phantom{\rule{0ex}{0ex}}\frac{}{}\left(\right)$