Question

Find the area of triangle ABC. Give your answer correct to 1 decimal place.

Answer 1

31.7 cm^2

Explanation:

We can use the formula

A = 1/2 ab sin C where a and b are two sides and C is the angle between them

C = 180 - 72 - 59 = 49

A = 1/2 ab sin C

= 1/2 ( 7)(12) sin 49

31.69780237

To 1 decimal place

31.7 cm^2