Question

Find c.
Round to the nearest tenth:
с
8 cm
829
550
b

Answer 1

c = 9.7

Explanation:

Using the law of sines

sin 55 sin 82

---------- = ---------------

8 c

Using cross products

c sin 55 = 8 sin 82

c = 8 sin 82 / sin 55

c=9.67115

To the nearest tenth

c = 9.7