What is the Pythagoras Theorem?

The Pythagoras Theorem equation is:

a+ b2 = c2

It is used to calculate an unknown side of a right angled triangle. a, b and c represent sides of the triangle and you can rearange the formula to find whichever side you are looking for.

c2 - b= a2

c- a= b2

Once you have found what aor b2 or c2 is you then simply square root that number to find the length of your side.

NB

Related Maths GCSE answers

All answers ▸

Simplify 3/(x+1) + (3x-9)/2 = 1, to get a quadratic equation in the format ax^2 + bx + c = 0.


If the area of a rectangle with sides 3cm and (4+x)cm is equal to that of a triangle with base of 2xcm and a height of 4cm, find x


Solve simultaneously 2x+3y=8, 3x+2y=7 to calculate values of x and y.


I am struggling to solve algebra equations. I was given the following equation to solve at school and am unsure how to approach it : 4(x + 3) = 2x + 8