Question

Farial inscribed a quadrilateral ABCD in a circle, as shown below.
If the measure of arc BCD is 220°, what is the measure of angle BCD?

80˚

50°

70°

40°

Answer 1

@campbell_st can you help?

Answer 2

Angle BAD = 110 since its half the arc size

then angle BCD = 70 opposite angles in a cyclic quadrilateral are supplementary

Answer 3

thanks :)