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laiz [17]
3 years ago
9

A circular patio has a radius of 4 yards. The patio is expanded so that the

Mathematics
1 answer:
stepan [7]3 years ago
6 0

Answer:

20pi or 62.83

Step-by-step explanation:

when r=4

pi r^2

16pi

when r=6

pi r^2

36pi

36pi-16pi=20pi or 62.83

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