Question

The area of an equilateral triangle is numeri-
cally equal to its perimeter. Find its perimeter
correct to 2 decimal places.

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Answer 1

Answer:

Let side be x

Therefore,

√3 a²/4=3a

√3 a/4=3

a=4×3/√3

a=12/√3

a=4√3

Let √3 be 1.73

Therefore,

a=4×1.73

=6.92

Perimeter=3×6.92=20.76