Question

What is the area of an equilateral triangle that has a perimeter of 36 centimeters? Round to the nearest square centimeter.

A. 15 square centimeters

B. 62 square centimeters

C. 72 square centimeters

D. 705 square centimeters

Answer 1

First, we need to know the sides of the equilateral triangle

Side = 36 / 3

Side = 12 cm.

The formula of getting the Area of an equilateral triangle is:

Area = square root (3) / 4 * a^2

Area = square root (3) / 4 * 12^2

Area = 62.3538 cm^2

Approximately, the area is equal to 62 square centimeters. The correct answer is letter B.

Explanation:

Answer 2

First, we need to know the sides of the equilateral triangle
Side = 36 / 3
Side = 12 cm.

The formula of getting the Area of an equilateral triangle is:
Area = square root (3) / 4 * a^2
Area = square root (3) / 4 * 12^2
Area = 62.3538 cm^2

Approximately, the area is equal to 62 square centimeters. The correct answer is letter B.