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Mathematics 12 Online
OpenStudy (anonymous):

http://prntscr.com/6nhpza

jimthompson5910 (jim_thompson5910):

what is the area of the rectangle?

OpenStudy (anonymous):

25?

jimthompson5910 (jim_thompson5910):

no, L = 15, W = 5 A = L*W = ???

OpenStudy (anonymous):

75?

OpenStudy (anonymous):

It is 154

OpenStudy (anonymous):

I am 100%

jimthompson5910 (jim_thompson5910):

yes, the area of the rectangle is 75 square units now onto the circle parts

OpenStudy (anonymous):

A= pir^2 A= Pi(5)^2 A=78.54 A=75+78.54 A= 154

jimthompson5910 (jim_thompson5910):

the 2 semi-circles that are on the edge can be cut off and combined to form a full circle which looks like this |dw:1427757718993:dw| the radius of this circle is 2.5 (since you cut the diameter in half to get 5/2 = 2.5)

jimthompson5910 (jim_thompson5910):

what is the area of that circle?

OpenStudy (anonymous):

He just said it is 154

jimthompson5910 (jim_thompson5910):

well 2 things a) it's the wrong answer b) it's against the rules to give out the direct answer without any steps beforehand

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