3 years ago

I need help doing my homework

Mathematics

1 answer:

lozanna [386]3 years ago

7 0

Answer:

A= πr^2

45=πr^2

45/1 =22/7×r^2

45/1=22r^2/7 cross multiply

22r^2 ×1=45×7

22r^2=315 divide both sides by 22

22r^2/22=315/22

r^2=14.318

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I need help doing my homework ​

I need help doing my homework