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math

posted by on .

a rectangle has a perimeter equal to circumference of a circle of radius 3. if the width of the rectangle is 3, what is the length?

a) 3pi-3
b) 4.5pi-3
c)6pi-3
d)9pi-3
e)cannot be determined


3*2*pi=3+3+2x where x=side of rectangle
6pi-6=2x
3pi-3=x

  • supid - ,

    you are stupid

  • math - ,

    i think you can find it by
    2(l+b)=2*pie*r

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