What is the value of x in the triangle?

Round your final answer to the nearest hundredth.

Guest Mar 19, 2018

#1**+1 **

This is a right triangle, and we know the length of the hypotenuse, and we want to find the length of the side adjacent to the 18° angle.

cos(an angle) = length of side adjacent / length of hypotenuse

cos 18° = x / 25 Now multiply both sides of this equation by 25 .

25 cos 18° = x

x = 25 cos 18° Plug this into a calculator to get...

x ≈ 23.78 cm

hectictar
Mar 19, 2018