To find: the lateral and surface area
Answer to Problem 13PPS
The surface area of the cone is
The lateral area of the cone is
Explanation of Solution
Given:
Formula used:
The lateral area L of a cone is
The surface area S of a cone is S = L + B.
Calculation:
Find the lateral area of the cone as follows:
Substitute r = 8 and l = 17 in
Thus,
Hence, the lateral area of the cone is approximately
Find the surface area of the cone as follows:
The area B of the base is,
Substitute
Conclusion:
Hence, the surface area of the cone is
Chapter 12 Solutions
Pre-Algebra, Student Edition
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