Question

Find area of equilateral triangle whose one side is 8cm

Answer 1

area of equilateral = 1/2 * h * b

h=b=8 cm

area  = 1/2 * 8* 8

32cm^2

Answer 2

Solution

Given :-

• Side of equilateral triangle = 8 cm

Find :-

• Area of equilateral triangle

Explanation

Formula

★ Area of equilateral triangle = √3/4 * ( Side)²

So,

==> Area of equilateral triangle = √3/4 * 8²

==> Area of equilateral triangle = √3 * 2 * 8

==> Area of equilateral triangle = 16√3

[ √3 = 1.732]

==> Area of equilateral triangle = 1.732 * 16

==> Area of equilateral triangle = 27.712 cm²

Hence

• Area of equilateral triangle will be 27.712 cm²

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Additional Knowledge

• Equilateral triangle have equal two sides.
• If we keep any perpendicular of third side it, we cut two same length any point .

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