Question

Help please. show work. open attachment.

Answer 1

Angle A is found by knowing tht angle sin a triangle add up to 180

A + B + C = 180 so
A = 180 - B - C
A = 180 - 68 - 46
A = 66

Use sine law, which says sinA / a = sin B / b


`\displaystyle (\sin A)/(a) = (\sin B)/(b) \\ (b\sin A)/(a) = \sin B \\ \\ b = (a \sin B)/(\sin A) \\ \\ b = (9 \sin 68)/(\sin 66) \\ \\ b = 9.13`

b = 9.13