
Ralph L. answered 04/28/13
Algebra I, II, Visual Basic, Beginning C++ tutor
tan 82° = x / 4250
(tan 82°) * 4250 = x
x ≈ 30240.32 ft. ( I don't know if I interpreted the problem right.)
Second problem:
This is a right triangle problem.
In this case the base of triangle is 12 feet and the hypotenuse is 13 feet.
use pythagorean theorem: a2 + b2 = c2
122 + b2 = 132
144 + b2 = 169
b2 = 169 - 144
b2 = 25
b = 5 feet.
so, the tree is 5 feet tall.