EASY GEOMETRY**
name an acute angle on the figure

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Determine which postulate or theorem can be used to prove that lmn =nmo