what is the Pythagoras theorem?

The pythagoras theorem is the rule used to work out the length of side of a right angle triangle with one length mising and two known lengths of side. The rule states that a= b2+c2.

"a" represents the hypotenuse and "b" and "c" represent the other sides. If the hypotenuse is given in the quiestion the equation must be rearranged. The most common mistakes are forgetting to rearragne the equations and forgetting to move the square over to the other side.

JK

Related Maths GCSE answers

All answers ▸

Washing powder is sold in two sizes: Bag 1 is 600 grams for £3.30. Bag 2 is 1500 grams and usually costs £9.60 but currently has 15% off. Which is better value?


A is the point with coordinates (5, 9) B is the point with coordinates (d, 15). The gradient of the line AB is 3. Work out the value of d.


The equation of a straight line is 3x + 2y = 24. Find where the line crosses the x-axis.


How do you use the quadratic formula?