Trigonometry question

Question

 Find the area of each of these triangles using the given details:

(a) AB = 48 cm, AT = 39 cm and angle BAT = 108 degree
(b) AB = 58 cm, CB = 78 cm and AC = 104 cm.

 

How would I start doing this question?

Answer 1

Area = (0.5)ab(sine C)

 

Area = (0.5)(48)(39)(sin 108°)

Area ≈ ‌936(0.951056516)

Area ≈ 890.188899

 

Follow this example to do b.