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AleksandrR [38]

3 years ago

15

The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14

1 answer:

Tom [10]3 years ago

5 0

Answer:

r = 5 cm

Step-by-step explanation:

A = πr²

78.53 = (3.14)r²

divide by 3.14

25 = r²

r = ±5

r = 5

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