What's Pythagoras Theorem and how can I use it?
Pythagoras theorem is: A^2 + B^2 = C^2. This might look confusing but it is actually quite simple. Pythagoras can only be used on a RIGHT ANGLED TRIANGLE! Then what you do is that the side of the triangle OPPOSITE to the RIGHT ANGLE is the hypotenuse, and you label this C (from the equation) the other two sides can be either A or B depending on what you fancy, but the hypotenuse must always by C. The simply square the sides and the equation will work. You need to have 2 of the sides of the triangle to work out the third.
GS
Related Maths GCSE answers
All answers ▸How do you solve the following simultaneous equations? Equation 1: 2x + 3y = 13 Equation 2: 3x - y = 3
Solve the simultaneous equations: x^2 + y^2 = 5 and y = 3x + 1
How do you solve simultaneous equations and why do you do it?
Harry drives from Exeter to London in 4 hours at an average speed of 70km/h. Ron drives from Exeter to London in 5 hours. (a) Assuming Ron took the same route as Harry, calculate Ron's average speed.