How do you find the length of a side of a right-angled triangle given the angle and the hypotenuse?

First label the triangle to show the opposite, adjacent and hypotenuse. Then you can use SOHCAHTOA to determine which trig function is needed. If you need to work out the opposite you use the sin function and if you need to work out the adjacent you use the cos function. as sin(angle) = opposite/hypotenuse then opposite = sin(angle) x hypotenuse. as cos(angle) = opposite/hypotenuse then opposite = cos(angle) x hypotenuse.

Answered by Lucy S. Maths tutor

2358 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How can I prepare for my Maths GCSE exams?


What is Pythagoras' Theorem and how do you use it?


What is (x-5)^2


A line has equation y=3x+4, state the gradient and the y-intercept


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences