Question

Malia and Michaela began swimming from the shore of Long Beach near Tofino BC. They swam at an angle of 43° to each other. When they stopped to rest, Michaela had gone 230m while Malia had gone 150m. How far apart were they to the nearest tenth of a metre?

Answer 1

I think you're using law of cosines here? Just apply the law of cosines let theta = 34 and a=230 and b=150 and solve for c.