First you have to use the formula which is r to the second times height times pi
You would do 4 times 2 equals 8 then multiply 8 times 10 equals 80 then multiply that answer times 3.14 then your answer is 251.2
Answer:
b/a=9, 9 is the answere
Step-by-step explanation:
i did it mentally lol
Answer:
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Answer:
4b^2+2b (b^2 means b squared)
Step-by-step explanation:
Answer:
The answer is A. 
Step-by-step explanation: