Question

Use a trigonometric ration to find the value of x. Round the answer to the nearest tenth.

Answer 1

tan 20  = opposite side / adjacent side = 9 /x

x * tan20 = 9

x = 9 / tan 20 = 24.7 to nearest tenth. Answer

Answer 2

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side  ⇒

tan20° = 9/x
x = 9/tan20°
x = 9/0.364
x = 24.7