# What is the remainder of a 10 by 10 square if the largest possible circle is cut out

Area of circles and squares

please its due tomorrow and i really want to get this question right! :)
kiwiapple
31 March 2011
Full question: The largest possible circle is cut from a square of paper measuring 10 inches by 10 inches. What area of paper is left?
kiwiapple
31 March 2011
ok so we know that if the square of paper is 10inches then the maximum diameter of the circle (the width) is going to be 10 inches
chloe
31 March 2011
So now we look at the formula for the area of a circle which is A =
chloe
31 March 2011
so A =
chloe
31 March 2011
then you take the area of the circle from the square?
kiwiapple
31 March 2011
A =
chloe
31 March 2011
the radius of a circle is half the diameter so we now have some values to calculate the area with:
chloe
31 March 2011
you're welcome
chloe
31 March 2011
oh my goodness thnkyou
kiwiapple
31 March 2011
exactly then you take the area of the circle from the area of the square
chloe
31 March 2011