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OpenStudy (anonymous):
OpenStudy (mathmale):
XY is 17 inches. What is the radius of this circle?
What is the formula for the area of a circle?
What is the area of this particular circle, now that you have the radius?
OpenStudy (anonymous):
formula: πr2
OpenStudy (mathmale):
Yes. That's the correct formula for finding the area of a circle. Mind answering my other questions?
OpenStudy (anonymous):
how do i find the area
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geerky42 (geerky42):
Do you know what radius is?
OpenStudy (anonymous):
do i multiply 3.14 x 17 ?
geerky42 (geerky42):
no. 17 is diameter. we need radius. do you know how to find radius from given diameter?
OpenStudy (anonymous):
is the radius 8.5
geerky42 (geerky42):
yeah. now you do \(\pi (8.5)^2\)
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geerky42 (geerky42):
π is 3.14
OpenStudy (anonymous):
26.69
geerky42 (geerky42):
\(\pi (8.5)^2 \rightarrow \pi(8.5)(8.5)\)
OpenStudy (anonymous):
226.865
geerky42 (geerky42):
yeah
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OpenStudy (anonymous):
this are my answer choices :
A.) 17π in2
B.) 36.75π in2
C.) 72.25π in2
D.) 8.5π in2
OpenStudy (anonymous):
@geerky42 ???
OpenStudy (mathmale):
I've tried calculating the area and get the same result as you. Are you positive that you have copied down both the problem and the possible answer choices correctly? I recommend you not spend much more time on this problem...instead, please move on to other problems.