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anonymous
 one year ago
Quadrilateral BCDE is inscribed inside a circle as shown below. Write a proof showing that angles C and E are supplementary.
anonymous
 one year ago
Quadrilateral BCDE is inscribed inside a circle as shown below. Write a proof showing that angles C and E are supplementary.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i really need some help on this ive seen others like this question but the answer never made sense

midhun.madhu1987
 one year ago
Best ResponseYou've already chosen the best response.1Since the 4 vertices of the quadrilateral BCDE lies on the circle...hence it is a Cyclic Quadrilateral.. The sum of the opposite angles of a cyclic quadrilateral is 180. Do you want the proof of this theorem??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0could you explain it? @midhun.madhu1987

midhun.madhu1987
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438966898875:dw

midhun.madhu1987
 one year ago
Best ResponseYou've already chosen the best response.1Angle BOD = 2 Angle BAD Angle BAD = (1/2) Angle BOD (1) Angle DOB = 2 Angle BCD Angle BCD = (1/2) Angle BCD (2) Adding both equations (1) and (2) Angle BAD + Angle BCD = (1/2) Angle BOD + (1/2) Angle BCD = (1/2) (Angle BOD + Angle BCD) = (1/2) * 360 = 180 Hope you got it
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