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 area of a triangle, whose sides are 4 cm, 13 cm and 15 cm, is __________________. | |||
| Right Option : B | |||
| View Explanation | |||
The side of a triangle are 13 m, 14 m and 15 m, area of the triangle is: | |||
| Right Option : C | |||
| View Explanation | |||
If the sides of a triangle are doubled, then its area ______________. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
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10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
