Question

Find the area of an equilateral triangle of side 20 m.
ANSWER: 173.2
I WANT FULL METHOD OF ANSWER
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Answer 1

Area of equilateral triangle= root3/4×a^2, where a is the side.

a=20cm

Area= root3/4×20×20 m^2

=root3×100 m^2

=1.732×100 m^2

=173.2 m^2

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Answer 2

Answer:

Area of an equilateral triangle =√3/4 × side²

here,

side = 20m

area= √3/4× 20²

=√3×5×20

=100√3 m²

hope it helps:)