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can you calculate the area of a circle?
i got 28.26 when i did
take the area of the 18 foot circle, subtract the area of the 15.5 foot circle then take half of that since it's a semicircle
to check it, if you want, think of it as a rectangle... half the circumference of a 16.75 foot circle times 2.5 won't be exactly the same, but should be close
Was my area correct before? Just so I can make sure i'm doing it correctly
I got a much different answer, so maybe I am wrong, sorry
What formula did you use? I might have made a mistake
(3.14 x 18 x 18 - 3.14 x 15.5 x 15.5 ) /2
when i recalculated the area i actually just got 13.3
oh let me try that then
no, don't... I am wrong
the options i was given for the answer were: 5 square feet 8 square feet 33 square feet 61 square feet and i'm unable to get any of them
I used the diameter instead of the radius... you were much closer
yes, it's an 18 foot circle and a 13 foot circle so 9 and 6.5 for the radii
I need to get some sleep, but that will give you the right answer
i subtracted the first area 28.26 and the second area for the tiled area 20.41 and got 8? is that the correct way to do it?
take the area of the 18 foot circle subtract the area of the 13 foot circle divide by two (the picture is a semicircle)
then i got the answer of 24.335
oh i accidentally hit addition, let me try that again
i got 7.85
what is the area of the 18 foot circle? the radius is 9 remember
how did you get that?
area is pi r squared... need to multiply by 9 again
i got 254.34
3.14 * 9 * 9 - 3.14 * 6.5 * 6.5 and then divide that by 2
that sounds much better for the area of the big circle
i got 60.8
and thats one of the multiple choices so I think we did it right....