# Area of a Triangle Using Heronâ€™s Formula

The formula given by Heron for the area of a triangle, is also known as Heronâ€™s formula.
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If a, b, c are the sides of a triangle, itsÂ perimeter is given by :

p = a + b + c = 2s , where

s = semi-perimeter andÂ  Â

Heronâ€™s formula is used for finding the area of a scalene triangle and when the height of the triangle is not known.
Area of the triangle in terms of the sides of the triangle is given by:

Â

Area of a triangle = Â Â  and

This formula is called 'Heron's formula'.

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Example :

Find the area of a triangle whose sides are 56 cm, 60 cm and 52 cm.Â

Solution :

Here a = 56 cm, b = 60 cm and c = 52 cm
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Area of a
Î” =

Area of the
Î” =1344 cm2
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