Math, asked by yug63, 11 months ago

find angle ABD and angle CDB

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Answered by bhoopesh75

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we know angle subtended from diameter is 90°( to the circumference
this inplies angle ABD=90°
also angleDCB=110°(cyclic quadrilateral opposite sum 180°)
this implies angle DCB = 40°
also angle DBA= 180°-(70+90)
BDA=20°

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