Question

In the diagram, AC is a diameter of the circle with center 0. If m ZACB = 50°, what is ZBAC?

OA 50°
OB. 40°
O C. 80°
OD. 100°​

Answer 1

40degrees

Explanation:

Find the diagram attached

Since the triangle ina semi circle is a right angle, hence <B = 90degrees

Also frm the diagram

<A + <B + <C = 180

<A + 90 + 50 = 180

<A + 140 = 180

<A = 180 - 140

<A = 40degrees

Hence the measure if m<BAC is 40degrees