distance of 30.0 and 75.9

Question

A surveyor wants to find the distance across a river. A stake is placed on each bank of the river. She measures a distance of 30.0 m from one stake to another on the same side of the river, thus finding the third vertex on a right triangle. She then measures the angle and finds it equal to 75.9 degree. What is the distance across the river?

Answer 1

Me thank all em werds become...yu hav rite triangel with base=30

&  angel at 1 end av base=75.9 deg...yu wanna find hite

hite=base*tangent(75.9 deg)

=30*3.981166875

=119.4350063

or bout 119