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Find the area of an equilateral triangle that has a height of 15 inches

Find the area of an equilateral triangle that has a height of 15 inches
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3 votes
Find the area of an equilateral triangle that has a height of 15 inches

User Bafromca
by
8.4k points

2 Answers

1 vote
Since it's equilateral, all sides should also be 15 inches.

A = 1/2 * b * h

A = 1/2 * 15 * 15

Multiply:

A = 112.5
User Rafael Moreira
by
8.3k points
5 votes
A = ¹/₂bh
A = ¹/₂(15)(15)
A = ¹/₂(225)
A = 112.5in²
User Miek
by
7.7k points
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