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muminat
3 years ago
12

the formula for the area of a circle is A pi r^2 what is the radius of a circle with an area of 400 pi cm^2

Mathematics
1 answer:
Bogdan [553]3 years ago
4 0

Answer: 20 cm

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain a variable.

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