Question

In the circle below, if < BAC = 36 °, find the arc measure of arc BC.

Answer 1

Given:

$\angle BAC=36^{\circ}$

Find-:

The arc of BC.

Explanation-:

The arc of BC is:

According to property, the angle is:

$\angle BOC=2\angle BAC$

So, the arc of BC is:

$=2\angle BAC$$\begin{gathered} =2\angle BAC \\ \\ =2\times36 \\ \\ =72^{\circ} \end{gathered}$

The arc of BC is 72°.