Question

If the perimeter of an equilateral triangle is 36 cm , what will be its area ( use √3=1.73)

Answer 1

Answer:

Area = 62.35cm^2

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Answer 2

let side of equilateral triangle be a

perimeter of equilateral triangle= 36cm

a+a+a=36cm

3a=36cm

a=36/2

a=18cm

area of equilateral triangle= √3/4×a2=√3/4×18×18

=139.32cm2

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