What is Pythagoras' Theorem?
You can use pythagoras' theorem to find the length of a side of a right angled triangle, provided that at least two of the lengths of the sides are known. The general rule is a2 + b2 = c2 where a, b and c are the labelled sides of the triangle with c being the hypotenuse (the longest side). Therefore if you have a triangle where the hypotenuse is unknown but the other two sides are 3 and 4 units long: 32 + 42 = c2 9 + 16 = c2 c2 = 25 c = 5 therefore the hypotenuse length is 5.
VJ
Related Maths GCSE answers
All answers ▸A particle is moving along a straight line. The displacement of the particle from O at time t seconds is s metres where s = 2t^3 – 12t^2 + 7t. Find an expression for the velocity of the particle at time t seconds.
Sam needs to make a drink from orange cordial and lemonade in the ratio 1:9. How much orange cordial does he need to make 1500ml?
What is Pythagoras' theorem and what can it be used to figure out?
If a right angled triangle has its longest side 7cm and another side is 4cm then how long is the other side of the triangle? Show your working