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

3126 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Simply fully (3x^2 - 8x - 3) / 2x^2 - 6x


A linear sequence begins: a + 2b, a + 6b, a + 10b, ..., ... Given that the 2nd term has a value of 8 and the 5th term has a value of 44, calculate the values for a and b


The area of a rectangle is 8cm^2. The rectangle is (3x+1) by (2x+5). Find the value of x


y=x^2+5x+6 solve for x


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