   Chapter 9.CR, Problem 2CR Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

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

The base of a right prism is a triangle whose sides measure 7cm, 8cm and 12cm. The altitude of the prism measures 11cm.calculate the lateral area of the right prism.

To determine

To find:

The lateral area of the right prism of a triangle.

Explanation

Formula used:

Lateral area L of any prism whose altitude has measure h and whose base has perimeter p is given by the formula,

L=ph.

Given:

The base of a right prism is a triangle whose sides measure 7cm, 8cm and 12cm. The altitude of the prism measures 11cm.

Calculation:

Let, L=ph(1)

In this problem, we first find the perimeter of the right prism of a triangle.

Right prism of a triangle as shown in the above figure.

The perimeter of right prism of a triangle is given by the formula,

p=a+b+c <

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