In right triangle DEF, we have D = 25, E = 90, and EF = 93. Find DE to the nearest tenth. You may use a calculator for this problem.
Try using law of sines for this problem.
Sine(A)/a = Sine(B)/b = Sine(C)/c
https://www.khanacademy.org/math/geometry/xff63fac4:hs-geo-non-right-triangles-trigonometry/hs-geo-law-of-sines/v/law-of-sines
=^._.^=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
∠D = 25º ∠E = 90º EF = 93 units
DE = (EF) / tan(∠D)
DE = 199.4 units
