Maths-
General
Easy

Question

If the side of an equilateral triangular park is 20 units. What will be half of its area ?

Hint:

Area of an equilateral triangle = fraction numerator square root of 3 over denominator 4 end fraction a2

The correct answer is: 86.60 cm2


    Area of an equilateral triangle = fraction numerator square root of 3 over denominator 4 end fraction a2
    = fraction numerator square root of 3 over denominator 4 end fraction 202 = 100 cm2
    Half of the areaequals 1 half cross times 100 square root of 3
    50 square root of 3 = 86.60 cm2

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