The sides of the pentagon are quadrupled, so they are now __ times as large. This means the area is now __ times as large. This is equivalent to an increase of __%.

Answer 1

Area of similar figures are proportional to the square of their corresponding sides

area of smaller pentagon : area of larger pendagon = 1^2 : 4^2 = 1 : 16

make use of this in your answer.

Answer 2

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