Question

If m∠AC = 178°, and m∠BC = 78°, what is m∠BDC?
a. 128°
b. 56°
c. 100°
d. 50°

Answer 1

The value of angle BDC is 50

d. 50°

How to find the missing side

The missing side is solved using the formula

= 1/2 (m∠AC - m∠BC)

Plugging in the values

= 1/2 (178 - 78)

= 1/2 (100)

= 50