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Mathematics 11 Online
OpenStudy (anonymous):

What is the area of the circle if XY = 17 in.?

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

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 \(\pi (8.5)^2\)

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

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.

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