Mathematics, 28.06.2019 01:00 spreadlight10
What is the diameter in inches of a circle that has an area of 16pi square inches
Answers: 2
![\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ A=16\pi \end{cases}\implies 16\pi =\pi r^2\implies \cfrac{16\pi }{\pi }=r^2\implies 16=r^2 \\\\\\ \sqrt{16}=r\implies 4=r~\hfill \stackrel{\textit{diameter is twice the radius}}{d=8}](/tpl/images/0025/3144/ea3d9.png)
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 19:00, shadow29916
Solve x+3y=6 and 4x-6y=6 by elimination . show work !
Answers: 1
Mathematics, 21.06.2019 19:30, iloading5117
Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts
Answers: 2
Mathematics, 21.06.2019 20:00, carligreen090
Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.
Answers: 1
You know the right answer?
What is the diameter in inches of a circle that has an area of 16pi square inches...
Questions in other subjects:
Biology, 24.11.2020 21:40
Social Studies, 24.11.2020 21:40
Mathematics, 24.11.2020 21:40
Social Studies, 24.11.2020 21:40
Mathematics, 24.11.2020 21:40
