The hypotenuse of a right angled triangle is 3.5 metres long and another of its sides is 2.5 metres long.

Calculate its perimeter correct to centimetres.

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Solution

Hypotenuse of the given right-angled triangle = 3.5 m

Length of the second side = 2.5 m

Let the length of the third side be a m.

By Pythagoras theorem, we have:

We know that perimeter of a triangle is equal to the sum of lengths of all its sides.

∴ Perimeter of the given right-angled triangle ≈ (3.5 + 2.5 + 2.45) m = 8.45 m

Thus, the perimeter of the given right-angled triangle is approximately equal to 8.45 m.

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The hypotenuse of a right angled triangle is 3.5 metres long and another of its sides is 2.5 metres long. Calculate its perimeter correct to centimetres.

The hypotenuse of a right angled triangle is 3.5 metres long and another of its sides is 2.5 metres long.

Calculate its perimeter correct to centimetres.