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Tamiku [17]
2 years ago
11

The diameter of a standard basketball is 9.5 inches. If the basketballs are covered in rubber, what is the minimum amount of rub

ber needed to manufacture a set of four basketballs?
Mathematics
1 answer:
Softa [21]2 years ago
6 0

Answer:

The minimum amount of rubber needed is 1,134 square inches

Step-by-step explanation:

we know that

The surface area of a sphere (basketball ) is given by the formula

SA=4\pi r^{2}

we have

r=9.5/2=4.75\ in ----> the radius is half the diameter

\pi=3.14

substitute

SA=4(3.14)(4.75)^{2}=283.385\ in^2

Multiply by 4 (because are four basketballs)

283.385(4)=1,133.54\ in^2

therefore

The minimum amount of rubber needed is 1,134 square inches

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