Question

if the perimeter of an equilateral triangle is 60 cm then find its area

Answer 1

Answer:

Step-by-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

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Answer 2

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