SOLUTION: An archery target consists of a circular bulls eye with radius x surrounded by four rings with width y. What is the area of the outermost ring in terms of x and y.
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Question 973522: An archery target consists of a circular bulls eye with radius x surrounded by four rings with width y. What is the area of the outermost ring in terms of x and y. Answer by amarjeeth123(570) (Show Source):
You can put this solution on YOUR website! Radius of the circle=x+4y
Area of the outermost ring=Area of the circle-Area of the penultimate ring
=π(x+4y)^2-π(x+3y)^2
=π(x^2+8xy+16y^2-x^2-9y^2-6xy)
=π(2xy+7y^2)