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Mathematics 7 Online
OpenStudy (anonymous):

Fan and medal!!!!! A porch has the shape of a quarter circle with a diameter of 5 ft. What is the approximate area of the porch, rounded to the nearest square foot? Use 3.14 to approximate for pi

OpenStudy (jhannybean):

What is the area of a circle?

OpenStudy (anonymous):

uhhhhh.............

OpenStudy (jhannybean):

look it up if you are not sure.

OpenStudy (anonymous):

3.14Xr squared

OpenStudy (anonymous):

is it

OpenStudy (anonymous):

Hello????!?!?!?!/1

OpenStudy (ribhu):

pi/16 * square of diameter. then calculate

OpenStudy (anonymous):

ok. 4.91

OpenStudy (ribhu):

so u got it.

OpenStudy (anonymous):

no you gave me answer in a message!

OpenStudy (ribhu):

and i explain this in here.

OpenStudy (anonymous):

k thx you get medal

OpenStudy (ribhu):

area of a circle is pi/4 *(square of dia)

OpenStudy (anonymous):

huh

OpenStudy (ribhu):

and quarter of a circle becomes 1/4 times of area of a circle so it becomes, pi/16 * (square of dia)

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