Question

the perimeter of a right angle triangle is 84cm.if the length of the shorter side is 21cm.then find the side of longest side​

Answer 1

Answer:

The side opposite the right angle is always the longest side, and is called the hypotenuse. The diagram on the left shows a right-angled triangle. The lengths of the sides are 3cm, 4cm and 5cm

Step-by-step explanation:

To calculate the length of a side on a right-angled triangle when you know the sizes of the other two, you need to use Pythagoras' Theorem. Pythagoras' Theorem says that, in a right angled triangle: The square of the hypotenuse is equal to the sum of the squares on the other two sides