Question

DA is tangent to the circle at A and DC is tangent to the circle at C. Find m2D for m B = 59. (The

figure is not drawn to scale.)
A
B
D
O 60.5
0 121
O 62
O 124

Answer 1

A

Explanation:

m angle b equals 59 now we have to find the arc of angle b.

so use the equation arc AC = 2(59)

arcAC = 118

360 - 118

=242

121/2

= 60.5