Question

what is the length of each side (in cm) of an equilateral triangle whose perimeter is 2.25.

Answer 1

Let all sides of Equilateral ∆ = x

Perimeter = sum of all sides

2.25 = x + x + x

2.25 = 3x

x = 2.25/3

x = 0.75 cm

Answer 2

Perimeter= 3xl
l=2.25/3
l=0.75 cm
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