Question

Triangle ABC has the following known dimensions.

Angle A = 107°
Angle C = 42°
Side a = 25 inches
What is the length of side c?
A. 25 inches
B. 18.3 inches
C. 16 inches
D. 17.5 inches

Answer 1

Answer: Side C = 17.5

Step-by-step explanation: We have to follow the laws of sines. So we would do 25sin(42)/sin(107).

Or sin(42) x 25

Then divide that value by sin(107).