Jon and Becky measured the circle-shaped part of a sun they drew on the sidewalk.
The diameter of the circle is 59 centimeters. What is the approximate area of the circle? (Use 3.14 for .)
10,930.34 cm2
2,732.585 cm2
683.14625 cm2
185.26 cm2
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OpenStudy (aaronandyson):
Area = pi*r^2
Diameter/2 = r
59/2 = r
OpenStudy (anonymous):
can u explain a lil more please...? im sorry im terrible at math
OpenStudy (aaronandyson):
LOL
I was just like you but take it easy can you'll be a master at it !:P
OpenStudy (aaronandyson):
Moving back to the question
Let's write down all the information we have.
OpenStudy (anonymous):
ok
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OpenStudy (aaronandyson):
We have been given that the diameter of this circle is 59 cms
OpenStudy (anonymous):
whats diameter i forgot LoL
OpenStudy (aaronandyson):
When we have the diameter divide it by 2
OpenStudy (aaronandyson):
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OpenStudy (anonymous):
ohhhh ok
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OpenStudy (anonymous):
and divide it by 2?
OpenStudy (aaronandyson):
Yes.
OpenStudy (anonymous):
29.5 ???
OpenStudy (aaronandyson):
Yes!
OpenStudy (aaronandyson):
So,29.5cms is the radius of the circle.
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OpenStudy (aaronandyson):
Agreed?
OpenStudy (anonymous):
is that it???
OpenStudy (aaronandyson):
Nope
Area of circle = pi*radius
Area of circle = 3.14*29.5
OpenStudy (anonymous):
ok whats radius...? im sorry i didnt really do classes this year and last year i didnt listen cause my math teacher was being mean