Math, asked by sreekalavlr123, 9 months ago

prove that X+Y=90°?

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Answered by vikashkumar4783

0

Answer:

answer of the questions is long but l solve very short so sorry

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Answered by jennisinu2004il

0

Answer:

OB=OC=X(angle of same radii)

x+x=360(angle at a point)

2x=360

x=180

angle y=90 (angle at the centre=double the at any point on the circle)

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