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Answered by
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SINCE BA IS DIAMETER
SO THE ANGLE SUBTENDED BY IT WILL BE
90
ANGLE ABD = 90
ADB IS TRIANGLE SO
ADB + ABD + DBA = 180
90 + ABD + 70 = 180
ABD = 180-90-70
ABD = 20
ABCD IS A CYCLIC QUADRILATERAL
SO OPP ANGLE WILL HAVE SUM OF 180
ADC + CBA = 180
ABD + BDC + CBD + DBA = 180
90 + BDC + 30 +20 = 180
BDC = 180 - 140
BDC = 40
BDC + ABD = 40 + 20
= 60
THEREFORE UR ANSWER IS RIGHT
HOPE THIS HELPS U
PLZZZZZ MARK AS BRAINLIEST
SO THE ANGLE SUBTENDED BY IT WILL BE
90
ANGLE ABD = 90
ADB IS TRIANGLE SO
ADB + ABD + DBA = 180
90 + ABD + 70 = 180
ABD = 180-90-70
ABD = 20
ABCD IS A CYCLIC QUADRILATERAL
SO OPP ANGLE WILL HAVE SUM OF 180
ADC + CBA = 180
ABD + BDC + CBD + DBA = 180
90 + BDC + 30 +20 = 180
BDC = 180 - 140
BDC = 40
BDC + ABD = 40 + 20
= 60
THEREFORE UR ANSWER IS RIGHT
HOPE THIS HELPS U
PLZZZZZ MARK AS BRAINLIEST
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