What is Pythagoras' Theorem for finding the length of a side of a triangle?

Pythagoras' Theorem can only be used on right angle triangles. To find the length of side a, the theorem can be used as follows:
a2=h2-b2
Taking the square root of the right-hand side of the equation will yield the length of side a of the right-angle triangle.

ES
Answered by Eloise S. Maths tutor

2957 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Expand 5yx^2 (3x^3 - 5xy + wy^2)


How to solve the simultaneous equations of 3x + 2y = 9 and x-y = 3


What is the slope of the function y=3x(squared)-9x+7 at x=2.


Factorise y^2 + 7y + 6


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning