Area of equilateral triangle with side 90cm
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3507.4cm
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Answer:
3507.3 square centimetres
Step-by-step explanation:
Given -
the side of equilateral triangle = 90 cm.
We know that-
Area of equilateral triangle = √3/4( side)^2
= 1.732/4 (90)^2
= 0.433 (90)^2
= 0.433 * 8100
= 3507.3 square centimetres
or 0.35 square metres
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