The area of an equilateral triangle is 4 \sqrt3 sq. cm. Its perimeter is:

Mensuration Practice Test 3

Question : 11 of 40

Marks: +1, -0

The area of an equilateral triangle is 4

√3

sq. cm. Its perimeter is:

Solution:

Area of an equilateral triangle =

√3/4 a^2

√3/4 a^2

4√3 cm^2

a^2

4√3 × 4/√3

a = 4 cm
Perimeter of the equilateral triangle = 3 × 4 = 12 cm

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