Concept explainers
To translate each problem into an equation. Draw a sketch for the given shape to get help from to get the dimensions of rectangle.
Answer to Problem 15P
Required equation:
Length of rectangle is 20 units.
Width of rectangle is 10 units.
Explanation of Solution
Given information:
Length of rectangle is twice of its width.
Perimeter of rectangle = 60.
Formula used: Perimeter of rectangle =
Calculation:
Let the width of
Let the length of triangle (length is twice of width) =
Plugging length l= 2x and width w= x in above formula
Perimeter of rectangle =
Combine like terms
Divide both sides by 6
Therefore, the width of the rectangle is 10 units.
And the length of rectangle =
=
So, the length of rectangle is 20 units.
Chapter 1 Solutions
Algebra: Structure And Method, Book 1
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