Question

one side of an equilateral traingle is 4 a cm. find it's area. (in sq.cm)
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Answer 1

Answer :

• Area of an Equilateral Triangle = √3a² sq.cm

Explanation :

Area of an Equilateral Triangle = √3/4 × a²

⇒ Area of an Equilateral Triangle = √3/4× 4a² sq.cm

⇒ Area of an Equilateral Triangle = √3/1 × 1a² sq.cm

⇒ Area of an Equilateral Triangle = √3 × a² sq.cm

⇒ Area of an Equilateral Triangle = √3a² sq.cm