Asked by Jenny
If the side of a square is doubled in size to 8", by what percent did it's area increase?
Answers
Answered by
bobpursley
area square=s^2
if doubled, area= (2s)^2=4s^2
percent= changeInArea/area * 100
= 400/1=four hundred percent
if doubled, area= (2s)^2=4s^2
percent= changeInArea/area * 100
= 400/1=four hundred percent
Answered by
Damon
If the result is 400% of the original 100%, then the increase is 300%
+100% = doubled
+200% = tripled
+300% = quadrupled
+100% = doubled
+200% = tripled
+300% = quadrupled
Answered by
Damon
That is always confusing and the thing to remember is that doubling is 100% increase.
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