Question

If A=78º, b=16, c=7, what is the area of this triangle?

Answer 1

= 54.78 square units

Explanation:

We can calculate the area of the triangle using the formula;

Area = 1/2abSinθ ; where a and b is the sides making the angle θ.

Therefore;

Area = 1/2 bc sin C

= 1/2 × 16 × 7 × Sin 78

= 8 × 7 × sin 78

= 54.78 square units