6. Write the following proportion using colons. 7 is to 21 as 3 is to 9. A. 7:21 = 3:9 B. 7:3 = 21:9 C. 21:7 = 3:9 D. 7:21 = 9:3
1 answer:
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Answer:
9
Step-by-step explanation:
The reason why that is wrong is because it says in terms o pi which means you do NOT multiply pi by the radius squared.
EQUATION FOR AREA OF A CIRCLE:
When you put it all together you get: which equals
DO NOT MULTIPLY 9 AND PI. IT'S JUST 9
hope this helped :)