a.
Todescribe:the irregular shape can be separated in to
a.
Answer to Problem 18PPS
Explanation of Solution
Given:
A diagram of the Denali national park wilderness area in Alaska is shown below:
Calculation:
Consider the figure,
The objective is to describe how to find the area of the figure.
The figure is a composite is rectangle and a trapezium.
Therefore, the area of the figure is sum of the area of the trapezium and rectangle.
Now, area of the trapezium is given by the formula is
Where a and b are two bases.
Hence, area of the trapezium is
b.
To estimate: the number of square miles contained in the Denali national park wilderness area.
b.
Answer to Problem 18PPS
Explanation of Solution
Given:
Calculation:
The objective is number of square miles contained in the Denali national park wilderness area.
Therefore, the area of the trapezium CDEF.
Hence, the number of square miles contained in the Denali national park wilderness area of is
c.
To estimate:the perimeter of the wildness area.
c.
Answer to Problem 18PPS
Explanation of Solution
Given:
Calculation:
The objective is to describe find the perimeter of the wildness area.
Therefore, the area of the trapezium CDEF.
Now, perimeter of the trapezium is given by the formula is
Hence, the perimeter of the national park of is
Chapter 11 Solutions
Pre-Algebra, Student Edition
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