If x = 18 feet and y = 10 feet, what is the area of the figure above? Use 3.14 for .
61.7 feet2
219.25 feet2
258.5 feet2
https://app107.studyisland.com/pics/128331basketball.png
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OpenStudy (chosenmatt):
@perl @phuong.tong
OpenStudy (chosenmatt):
@mathslover
OpenStudy (sleepyjess):
Do you know the formula for area of a circle?
OpenStudy (chosenmatt):
A=pi r ^2
OpenStudy (sleepyjess):
yep, so first we need to find the area of that circle
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OpenStudy (chosenmatt):
okay
OpenStudy (chosenmatt):
@sleepyjess
OpenStudy (sleepyjess):
can you do that?
OpenStudy (bee_see):
Area of circle = pi times r^2= pi times 5^2 = 25pi. The 5 comes from y/2 since the radius is half of a diameter, which is 10 in this case.
OpenStudy (chosenmatt):
no i need help with that part
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OpenStudy (chosenmatt):
@Bee_see
OpenStudy (sleepyjess):
The radius is half of the diameter, the diameter is given as y
OpenStudy (bee_see):
Then. Find the area for rectangle.Area of rectangle= L X W = 18 X 10=180. Add 25pi + 180. We get 258.53. Round the answer. We get 253.5.
OpenStudy (chosenmatt):
NOOOOOOOOOOOOOOOOOOOOOOOOOOO MY QUESTION WENT AWAY AFTER ALL THIS TIME :(
OpenStudy (bee_see):
258.5.
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