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?
The total area of 7 circles
The total area of 22 circles
The total area of all the shapes
The total area of all the squares
DS and rosala.......I think rhat both of you might be able to do this one........give it a try!!!!
I used the calculator.
Think about this guys.....what's the "formula" for the area of a circle with a radius of "r" ???
What would be the way to find out the area of 7 of these circles???
You're correct DS......7*pi*y^2 would be the answer for the area of 7 circles !!!
good job !!!
Good job DS!
Btw CPhill i too was thinking the same answer but just got a lil confused!