Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Jake cut out 3 small circles and 5 big circles from a piece of cardboard. The radius of each small circle was x inches and the radius of each big circle was y inches. The expression below shows the total number of square inches of cardboard that Jake used for cutting out the circles. 3πx2 + 5πy2 What does the term 5πy2 in the expression represent? A) The total number of circles B) The total area of all the circles C ) The total area of the big circles D) The total area of the small circles

OpenStudy (ajprincess):

how do you find the area of a circle

OpenStudy (ajprincess):

Any ideas @karoalvarez

OpenStudy (anonymous):

calculating the length of the radius?

OpenStudy (ajprincess):

r u familiar with the formula to find the area

OpenStudy (anonymous):

Area = π × r2 ?

OpenStudy (ajprincess):

yes. if the radius is y then what will be the area of that circle

OpenStudy (ajprincess):

@karoalvarez

OpenStudy (anonymous):

sorry i'm trying to figure it out but i"m kinda lost/confused

OpenStudy (ajprincess):

that's k:) jst plug in y in place of r in the formula

OpenStudy (anonymous):

ok thank you so much for helping me understand the question

OpenStudy (ajprincess):

u r welcome:) hav u figured out the answer?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!