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lakkis [162]
3 years ago
13

Help me please i dont understand

Mathematics
1 answer:
kipiarov [429]3 years ago
5 0

Answer:

C=75.36

A=452.16

Step-by-step explanation:

C=2x3.14xr

2×\pi×12=75.36

A=3.14×r^{2}

3.14x12x12=452.16

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