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jackellyn
 one year ago
Explain why the following is true: If C is the center of the circle, triangle BCD is an equilateral triangle.
jackellyn
 one year ago
Explain why the following is true: If C is the center of the circle, triangle BCD is an equilateral triangle.

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Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2well, assuming that the triangle BCD is inscribed in the circle like so: dw:1436400969882:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436401004361:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436401334084:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2(bad drawing, apologies) EC and AD intersect, giving us the vertical angle 60 on both sides

jackellyn
 one year ago
Best ResponseYou've already chosen the best response.0Yeah that's what I have so far. I just need to find a way to say the angle CBD and angle CDB are 60 degrees too

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2split the 60 degree angle on the right side into 30 and 30

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436401484203:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2giving us dw:1436401524183:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2basically, what I did was draw a straight line down from D to C, resulting in two right triangles, each with an angle of 30 and 90, and the remaining angle is 60 because 30+60+90 = 180 hopefully that wasn't too confusing to understand D:
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