To find: the dimensions of each rectangle and make sketch of rectangles expressing all dimensions in terms of w.
Answer to Problem 7P
The red
The blue triangle dimensions width is 14 cm and length is 22 cm.
Explanation of Solution
Given information:
The length of a red rectangle is 15 cm more than its width w. a blue rectangle, which is 5 cm wider and 2 cm shorter than the red one, has perimeter 72 cm.
Sketch:
Calculation:
Consider w is the width of the red rectangle, and then
Consider
If the Perimeter p means adding all 4 sides of the rectangle,
Then perimeter for blue rectangle,
Solve for w,
Therefore the width of red rectangle is 9 cm.
Then length of red rectangle,
And width of blue rectangle,
Length of blue rectangle,
Chapter 3 Solutions
Algebra: Structure And Method, Book 1
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