GCSE Maths - Pythagoras' Theorem And How To Use It #120

The video tutorial explains how to use Pythagoras theorem to find the missing length of a right triangle. It covers the conditions for applying the theorem, such as the presence of a right angle and knowing two side lengths. The tutorial provides step-by-step examples, demonstrating how to label sides, set up the equation, and solve for the unknown side using a calculator. It also clarifies how exam questions might label triangle corners and how to interpret them.

What is the length of side 'x' if the other two sides are 3 and 4?

• 5

• 6

• 7

• 8

If one side is 1.7 and another is 3.2, what is the value of x to three significant figures?

• 3.60

• 3.62

• 3.64

• 3.66

What is the length of side XZ if the sides are 5.6 and 10.5?

• 11.5

• 11.6

• 11.9

• 12.0