We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

What is the value of x in the triangle?

Round your final answer to the nearest hundredth.





 Mar 19, 2018

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

 Mar 19, 2018

10 Online Users