Concept explainers
a.
To determine the expression of the area of trapezoidal cross section of the dam.
a.
Answer to Problem 30PPS
Explanation of Solution
Given:
Length of base at the bottom
Length of base at the top
Formula used:
Area of Trapezoid
Calculation:
Length of base at the bottom
Length of base at the top
Length of base at the bottom be
Length of base at the top be
Height be
So, length of base at the bottom
Length of base at the top be
Conclusion:
Therefore, the expression of the area of trapezoidal cross section of the dam is
b.
To determine the area of the dam if height is
b.
Answer to Problem 30PPS
Explanation of Solution
Given:
Height is
Formula used:
Area of Trapezoid
Calculation:
Length of base at the bottom
Length of base at the top
Length of base at the bottom be
Length of base at the top be
Height be
So, length of base at the bottom
Length of base at the top be
Putting,
Conclusion:
Therefore, the area of the dam if height is
Chapter 8 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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