Question

Find the atea of an equilateral triangle whose perimeter is 12cm

Answer 1

Step-by-step explanation:

4√3 cm²

Step-by-step explanation:

Given that ;

Perimeter of equilateral triangle = 12 cm

∴ Each side =

Each side = 4

Now, we know that ;

Area of equilateral Δ = √3 / 4 a²

= √3 / 4 * 4²

= √3 * 4

= 4√3

Hence, area of equilateral triangle is 4√3 cm².

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Equilateral triangle : The triangle having all the sides equal and each angle measures 60°, is called equilateral triangle.

Area of equilateral ∆ = √3 / 4 a².

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Answer 2

Answer:

the area will be 6√108 cm^2