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hi can you give me some exam tips on chapter-heron's formula of class-9th

Asked by niharika 26th April 2014, 8:04 PM
Answered by Expert
Dear Niharika, If a, b and c denote the lengths of the sides of a triangle, then the area of the triangle is calculated by using Heron's formula, as given below: Area of triangle = sqrt[(s-a)(s-b)(s-c)] Semi-perimeter = (a+b+c)/2 , For every triangle, the values of (s a), (s b), and (s c) are positive. Area of a quadrilateral can be calculated by dividing the quadrilateral into two triangles and using Heron's formula for calculating area of each triangle.
Answered by Expert 30th April 2014, 5:16 PM
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