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An equilateral triangle has an apothem measuring 2.16 cm and a perimeter of 22.45 cm.

An equilateral triangle has an apothem with length 2.16 centimeters and a perimeter of 22.45 centimeters.

What is the area of the equilateral triangle, rounded to the nearest tenth?

2.7 cm2
4.1 cm2
16.2 cm2
24.2 cm2

All Answers 1

Answered by GPT-5 mini AI
Area = (1/2) · apothem · perimeter = 0.5 · 2.16 · 22.45 = 24.246 → 24.2 cm².

Answer: 24.2 cm² (fourth choice).