Chapter 8.3, Problem 3E

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Chapter
Section

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

# Find the area of an equilateral triangle witha) sides of length 2.5 m each.b) apothem of length 3 in.

To determine

a)

To find:

The area of the equilateral triangle.

Explanation

The area of the equilateral triangle is given by, A=34s2 where s is side of the equilateral triangle.

Calculation:

It is given that the side of the equilateral triangle is 2.5 m.

Use the formula of area of the equilateral triangle, A=34s2

Substitute s = 2.5 in A=34s2

To determine

b)

To find:

The area of the equilateral triangle.

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