Maths
posted by Shane .
Iam stuck.Please anyone help me. P and Q are two trees 490m apart beside a river. F is a flagpole on the other side of the river. If angle PQF=43 degree and angle QFP = 36 degree, Find the distance PF.

using the law of sines,
PF/sin43° = 490/sin36°
plug and chug