Find the area of the triangle whose perimeter is 60cm
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dhruv257:
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Here is your answer
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Perimeter of triangle is 60 cm
triangle has three sides = 60cm
3x = 60
x = 60 / 3
x = 20cm
semi perimeter = 60 / 2 = 30 cm
Using Herons formula
√S ( S - a) ( S - b) ( S - c )
√ 30 ( 30 - 20 ) ( 30 - 20 ) ( 30 -20)
√30 * 10 * 10 * 10
√30,000
100√3 cm
hence answer is 100√3 cm²
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