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goblinko [34]
3 years ago
15

Needs help: deals with area and circumference

Mathematics
1 answer:
Simora [160]3 years ago
3 0
Area of the big circle-area of the small circle is what you are looking for so
Big circle is (3.5)^2pi=12.25pi
Small circle is 4pi
12.25pi-4pi=8.25pi
8.25pi=26
26cm^2
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