Question

Let ∠D be an acute angle such that cosD=0.64. Use a calculator to approximate the measure of ∠D to the nearest tenth of a degree.

Answer 1

Answer:

50.2 degreees

Step-by-step explanation:

I did math

Answer 2

Answer:

50.2°

Step-by-step explanation:

$\cos \angle D = 0.64\\\\\angle D = \cos^{-1}(0.64)\\\\\angle D = 50.20818\\\\\angle D \approx 50.2\degree$