Question

100405090mZB 100m2 = 50

Answer 1

Given data:

The given figure of the circle.

Angle he measurement of the angle B is,

$\begin{gathered} \angle B=\frac{1}{2}(180^{\circ}) \\ =90^{\circ} \end{gathered}$

The measurement of the angle A is,

$\begin{gathered} 2\angle A=180^{\circ}-100^{\circ} \\ \angle A=40^{\circ} \end{gathered}$

In triangle ABC, the angle sum property is,

$\begin{gathered} \angle A+\angle B+\angle C=180^{\circ} \\ 40^{\circ}+90^{\circ}+\angle C=180^{\circ} \\ \angle C=50^{\circ} \end{gathered}$