Respuesta :

Answer:

= 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