Question

Find the missing side round to the nearest tenth.​

Answer 1

Explanation:

Remark

Cos(y) = adjacent Side / hypotenuse

y = 51 degrees

adjacent = 10

Solution

Cos(51) = 10/x Multiply both sides by x

x cos(51) = 10 Divide by Cos(51)

x = 10 / cos(51)

Cos(51) = .6293

x = 10/0.6293

x = 15.89