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

= 54.78 square units

Step-by-step 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