Pythagoras' theorem is a formula you can use to calculate the length of any of the sides on a right-angled triangle or the distance between two points.

Is a triangle with sides of , and a right-angled triangle?

Yes

No

Sometimes

What is the length of the hypotenuse of a right-angled triangle when the lengths of the other sides are and ?

What is the length of one side of a right-angled triangle when the length of the hypotenuse is and the length of the other side is ?

What is the length of one side of a right-angled triangle when the length of the hypotenuse is and the length of the other side is ? Give your answer correct to decimal place.

is located at , and is located at . What is the length of ?