Chapter 8.2, Problem 21E

### 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

# A trapezoid has an area of 96 cm2. If the altitude has a length of 8 cm and one base has a length of 9 cm, find the length of the other base.

To determine

To Find:

The length of the base of the trapezoid.

Explanation

Formula Used:

The area A of a trapezoid whose bases have lengths b1 and b2 and whose altitude has length h is given by A=12h(b1+b2).

Calculation:

It is given that the area of the trapezoid is 96 cm2. Also given that the length of the altitude is 8 cm and one of the bases is 9cm.

That is, A=96Â cm2,Â h=8Â cm and b1=9Â cm

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