The difference in circumference between the goal and the center cross-section of a basketball is 26.4inches.
It is given that
Diameter of a basketball goal = 18inches
So, the radius will be 18/2 = 9inches
What is the circumference of a circle?
It is the length of the outer periphery of a circle equals 2*π*r, where r is the radius of the circle.
Circumference of goal = 2*π*9 = 56.57inches
Diameter of basketball = 9.6inches
So, the radius of basketball will be 9.6/2 = 4.8 inches
Circumference of cross-section of basketball = 2*π*4.8 = 30.17inches
So, the difference in circumference between the goal and the center cross-section of a basketball = 56.57-30.17 = 26.4inches.
Therefore, difference in circumference between the goal and the center cross-section of a basketball is 26.4inches.
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