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anonymous
 4 years ago
find the area of the segment of a circle. radius 6 cm and angle 120 degrees
anonymous
 4 years ago
find the area of the segment of a circle. radius 6 cm and angle 120 degrees

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campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1well its 2 problems... in 1 dw:1328677721761:dw find the area of the triangle with sides 6cm and angle 120 A = 1/2 absinC find the area of the sector... A = 120/360 x pi x 6^2 the segment will be Area of sector  Area of Triangle

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Pi(r)^2 would be the full circle. Then divide that by 3 to get 1/3 of it or 120 degrees. pi(6)^2=113.097 > /3=37.69 campbel are you sure you want to use a triangle? maybe I dont understand the question but this is my thought...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you can also note that 120 degrees is one third of a the circle, therefore it will be 1/3 the area of the entire circle A = pi*r^2 = pi*6^2 = 36 pi since it's A/3 then. A/3=36pi/3=12pi

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what if you are only supposed to use geometry? this is for a geometry class. they have not used sin yet

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0both ways work just fine

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0geometry method is described by me and loophole

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1then you can't find the area of a segment without using the sector  triangle

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0how do you find the area of a triangle without knowing base or height?

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1loophole and matt... are only finding the area of a sector... and not a segment...

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1use trigonometry... A = 1/2 x 6 x 6 x sin(120)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a sector is just a divided circle.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0campbell's right. wasn't thinking. if it IS the segment they ask for, then yes you have to subtract the area of the the triangle

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ohh, okay you're right a segment is different.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yest that is what I am asking
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