Area with Herons Formula
Area with Herons Formula
Heron's Formula : In some cases, length of each side of the triangle are given but height of the triangle is neither given nor we are able to find in any way, then to find the area of such type of triangle, we use Heron's formula which is given below.
Area of triangle = , where a,b,c are length of the sides of a triangle and s is the semi-perimeter of the triangle i.e.
Example: Find the area of a quadrilateral ABCD in which AB = 3 cm, BC = 4 cm, CD = 4 cm, DA = 5 cm and AC = 5 cm. Solution : We divide the quadrilateral ABCD in two triangle ABC and ACD For Area ( = Similarly, for a = 5 cm, b = 5 cm, c = 4 cm and s = Area ( =
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The sides of a triangle are 50 cm 78 cm and 112 cm The smallest altitude is | |||
| Right Option : B | |||
| View Explanation | |||
The sides of a triangular field are 325 m 300 m and 125 m The area in sq. m. is ______________________. | |||
| Right Option : A | |||
| View Explanation | |||
The area of a triangle, whose sides are 4 cm, 13 cm and 15 cm, is __________________. | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [20]
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Barkha Arora
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Manya
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Aman Kumar Shrivastava
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Aman Kumar Shrivastava
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Om Umang
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