Sandy cut out 2 squares and 7 circles from a piece of cardboard. The length of the sides of each square was x inches and radius of each circle was y inches. The expression below shows how many more square inches of cardboard Sandy used for making the circles than the squares. 7πy2 - 2x2 What does the term 7πy2 in the expression represent?

Question

Sandy cut out 2 squares and 7 circles from a piece of cardboard. The length of the sides of each square was x inches and radius of each circle was y inches. The expression below shows how many more square inches of cardboard Sandy used for making the circles than the squares.  7πy2 - 2x2  What does the term 7πy2 in the expression represent?

jim_thompson5910 · Answer

hint: 

Area of a circle 

A = pi*r^2

jim_thompson5910 · Answer

A = area
r = radius

pi = 3.14 (approximately)

anonymous · Answer

for the problem leave pi as pi....