Question

Instructions: Find the missing side. Round your answer to the nearest tenth.

Answer 1

cosθ=Adjacent/ hypotenuse

`\cos(30) = (x)/(22) \\ \\ ( √(3) )/(2) = (x)/(22) \\ \\ 2x = 22 √(3) \\ \\ x = (22 √(3) )/(2) \\ \\ x = 11 √(3) = 19.05 = 19.1`

Answer 2

Explanation:

x is the adjacent side of 30°

Hypotenuse = 22

`Cos \ 30^ \circ = (adjacent \ side)/(hypotenuse)\\\\\\0.866 = (x)/(22)\\\\\\0.866*22 = x\\`

x = 19.1