To find:
The slant height of the pyramid.
Answer to Problem 25PPS
The slant height is
Explanation of Solution
Given information:
The surface area of a triangular pyramid is
Calculation:
First find the missing side using Pythagorean theorem:
Substitute
So, the third side is
Perimeter of the triangle is:
Find the base area:
The surface area
Hence, the slant height is
Chapter 12 Solutions
Geometry, Student Edition
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- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning