the perimeter of an equilateral triangle is 60 cm.Find area using Heron's formula.
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Answer:
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Step-by-step explanation:
Perimeter = 60cm
1 side = 60/3 = 20 cm
√s(s-a)(s-b)(s-c)s(s−a)(s−b)(s−c)
s = 30
√30(30-20)(30-20)(30-20)
=√30×10×10×10=√30000cm² = 100√3 cm²
Answered by
0
Answer:
100√3
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