Question

each side of an equilateral triangle measures 8 centimetre. the area of the triangle is​

Answer 1

Explanation:

area of equilateral triangle = √3/4 * a^2

= √3/4 * 8^2

= √3/4 * 64

= 64√3/4

= 27.71 cm square

Answer 2

Answer:

Consider a as the side of equilateral triangle i.e. a = 8cm

Area of an equilateral triangle = ( √3 ×a²)/4 sq units

So we get Area of the equilateral triangle = ( √3×8²)/4

On further calculation

Area of the equilateral triangle = (√3×64)/4

So we get

Area of the equilateral triangle =√3 ×16

By substituting the value of √3

Area of the equilateral triangle = 1.732×16=27.712

By correcting to two places of decimal

Area of the equilateral triangle = 27.71cm²

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