Question

In ADEF, the measure of ZF=90°, DE = 52 feet, and FD = 14 feet. Find the measure of D to the nearest degree.

Answer 1

EXPLANATION

In order to find the measure of

$\cos x=\frac{adjacent\text{ cathetus}}{\text{Hypotenuse}}$$x=\cos ^{-1}(\frac{14}{52})$$x=74.38^o\approx74^o$

The answer is 74 degrees.