Find the Lateral area and surface area of the regular pyramid.
Answer to Problem 2CYU
L =
S =
Explanation of Solution
Given:
Formula Used: The Lateral area L of a regular Pyramid is
The Surface area S of a regular Pyramid is
Calculation:
The pyramid has a base that is pentagon , the length of each side is 7 in. and the slant height is 9 in.
Perimeter of the base = P = 5(length of each side) = 5(7) = 35 in.
The Lateral area =
The base is a pentagon .Divide the base into 5 equal
Find the
Now,
So, the area of the triangle that has base 7 in. and height 4.8 in. =
Area of the base = B =5(area of each triangle)=
So, the surface area of the pyramid :
Hence ,
L =
S =
Chapter 12 Solutions
Geometry, Student Edition
Additional Math Textbook Solutions
Thomas' Calculus: Early Transcendentals (14th Edition)
Elementary Statistics: Picturing the World (6th Edition)
Introductory Statistics
Elementary Statistics: Picturing the World (7th Edition)
- 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