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Flapdragon
 3 years ago
I need some help finding the surface area of this figure...
Flapdragon
 3 years ago
I need some help finding the surface area of this figure...

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UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1a little circle a big circle and an trapezium

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1333783298213:dw It is not a trapezium but a difference of sectors

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1333783389861:dw

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1do you mind if i work in radians (or do you prefer degrees) radians will be simpler

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1how do we find the extra height to the nonexistant apex of the cone

fl3x1
 3 years ago
Best ResponseYou've already chosen the best response.0Do you know the final answer so i can confirm? is it 388.355? if yes then ill explain it

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1333784950944:dw

Flapdragon
 3 years ago
Best ResponseYou've already chosen the best response.0I don't really know what the final answer is (or how to find the extra height). :c

fl3x1
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1333785068455:dw i just added the surface areas of these two figures..

fl3x1
 3 years ago
Best ResponseYou've already chosen the best response.0suface area of cone + surface area of circle

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1but the bit that goes round the middle is not a sector , it is a difference of sectors

fl3x1
 3 years ago
Best ResponseYou've already chosen the best response.0im not sure its right though

Flapdragon
 3 years ago
Best ResponseYou've already chosen the best response.0Anyway, thank you both for helping! I'm...still not entirely sure how to do this problem, but I have a couple of ideas now, so...
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