Concept explainers
To find: The percentage increase in the area of the given rectangle if its each dimension is tripled.
Answer to Problem 40STP
Total percentage increase in the area of the rectangle is 800% . Or, option H is correct answer.
Explanation of Solution
Given information: A rectangle with its width as 8 inches and length as 10 inches.
Formula used: Following formulae to be used here:
Area of the rectangle
Percentage increase
Calculation: As the dimension of the rectangle is tripled, so new width of the rectangle is 24 inches and its new length is 30 inches.
So, new area
And old area=8×10=80 square inches
So increase in area
So Percent increase
Conclusion: So, required percentage increase in the area of the given rectangle is 800%.
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