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If you are referring to the area of a rectangle, it will increase by 3 times the width. The area of a triangle will increase by 3 times 1/2 the base or, in other words, 1 1/2 times the base. (This answer presumes you mean the height increases by three units, such as inches or millimeters, not by three times the original height.)
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Earn +20 ptsQ: How much will the area increase if the height is increased by 3?
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Continue Learning about Math & Arithmetic
If the area is increased by 69 then how much the side of the square will increase?
Each side will increase by the square root of 69 (approx. 8.3).
How much does the width of a rectangle increase if the length is increased by 8?
This needs more information. Without some other factor, like a change in area, the width doesn't have to increase at all.
What does the percent of increase mean?
It is a measure of how much something has increased by.
How much is 20 increased to 36?
Before the increase, it's 20. After the increase, it's 36.
When the postage rate is increased from 25 cent to 29 cent how much is the percent increased?
It is a 16% increase
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