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Mathematics 21 Online
OpenStudy (anonymous):

What is the area of the slice of pie that was cut, rounded to the nearest hundredth? 22.08 ft2 13.19 ft2 33.14 ft2 28.97 ft2

OpenStudy (anonymous):

OpenStudy (anonymous):

@campbell_st

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

help please

OpenStudy (anonymous):

@jdoe0001

OpenStudy (campbell_st):

the sector angle helps to determine the fraction of a circle so \[\frac{38}{360} \times \pi r^2\] substitute r and then evaluate

OpenStudy (anonymous):

is r=20

OpenStudy (anonymous):

?

OpenStudy (anonymous):

if I do 38/360*3.14*20^2 I get 132.5 and that aint right

OpenStudy (campbell_st):

well you have a slight error..... the diameter is 20... so whats the radius...

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