Asked by Anonymous
by what factor must the radius of a circle be multiplied to make the area of the cicle 3 times as large?
Answers
Answered by
bobpursley
area is proporationalto the square of radius.
area= k *radius^2
Area2/area1=3= k radius2^2/radius1^2
radius2/radius1= sqrt 3
area= k *radius^2
Area2/area1=3= k radius2^2/radius1^2
radius2/radius1= sqrt 3
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