What will be the length of third side of a right angled triangle whose hypotenuse is 5 cm and one of the side is 3 cm? What will be the length of third side of a right angled triangle whose hypotenuse is 5 cm and one of the side is 3 cm?

4 cm

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let x be the length of the 3 rd side, then

x² + 3² = 5²

x² + 9 = 25 ( subtract 9 from both sides )

x² = 16 ( take the square root of both sides )

x = = 4

The third side is 4 cm

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step-by-step explanation: