Answer:
20-45 answer should be d good luck sorrybif im wrong
B.20
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Answer:153.9 cm
Step-by-step explanation:
The area of a circle is found by pi × radius squared and pi is aprox 3.14 so 3.15×7² = 153.86 then round off to the nearest tenth you get 153.9
2.1818
Hope it helped!
