Your formula here is A=pir^2
Plug in the numbers but instead use 22/7 for pi
A=(22/7)(21)^2
A=22/7*441=1386
Answer is 1386 sq inches
D all the above. I had this question also
Whether~1.F(x)*G(x),
2. F(x)+G(x),
3.F(G(x)),
4.F(x)=G(x) ?
Answer: the answer would be 0.7
Step-by-step explanation: i hope this helped
V that is potential diff is equal to current multiplied by resistance. This snows that v is proportional to current directly
