Concept explainers
a)
To calculate: Surface area of square pyramid with base length 1 and slant height 10.
a)
Answer to Problem 22IP
21 square units.
Explanation of Solution
Given information:
The given information is, A pyramid with vase length 1 and slant height 10 is given.
Formula used:
Surface area
Heron’s formula: semi perimeter
Area of triangle
Calculation:
b)
To calculate: To complete the given table.
b)
Answer to Problem 22IP
Side length | 1 | 2 | 3 | 4 |
Slant height | 10 | 20 | 30 | 40 |
Surface area | 21 | 84 | 189 | 336 |
Explanation of Solution
Given information:
The given information is, Pyramids with square base are given as shown in the table.
Formula used:
Surface area
Heron’s formula: semi perimeter
Area of triangle
Calculation:
c)
To calculate: To predict surface area of pyramid with side length 5 and slant height 5, then check prediction.
c)
Answer to Problem 22IP
Prediction: 525
Acmol value: 525
Explanation of Solution
Given information:
The given information is, A pyramid with base length 5 and slant height 50 is given.
Formula used:
Surface area
Heron’s formula: semi perimeter
Area of triangle
Calculation:
Chapter 12 Solutions
Glencoe Math Accelerated, Student Edition
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