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The area of sector AOB is 20.25 ft2. Find the exact area of the shaded region.
 one year ago
 one year ago
The area of sector AOB is 20.25 ft2. Find the exact area of the shaded region.
 one year ago
 one year ago

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dietrich_harmonBest ResponseYou've already chosen the best response.0
A. (20.25 40.5 ft2 B. (20.25  81) ft2 C. ( 20.25  40.5 2 ) ft2 D. none of these
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
dw:1360004880244:dw
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
Subtract the area of the right triangle from the given area of the sector and you will get the shaded area (known as segment of a circle). What is the area of the right triangle? @dietrich_harmon
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
81 is not the area of the triangle. Try again.
 one year ago

dietrich_harmonBest ResponseYou've already chosen the best response.0
it gonna be A or c
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
What is the area of the triangle? A = (1/2) b*h so ..
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
c) looks sketchy with C. ( 20.25  40.5 2 ) ft2 If the area is 40.5, what is that extra 2 doing there? @dietrich_harmon
 one year ago

dietrich_harmonBest ResponseYou've already chosen the best response.0
i go with c then thanks
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
All of these options > . (20.25 40.5 ft2 B. (20.25  81) ft2 C. ( 20.25  40.5 2 ) ft2 give negative areas. Area is not negative so that leaves one option.
 one year ago

dietrich_harmonBest ResponseYou've already chosen the best response.0
D then @Directrix
 one year ago

DirectrixBest ResponseYou've already chosen the best response.1
Yes, this was a good "tricky" question. We should have picked up on that negative business but better late than never. :)
 one year ago
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