∵∠A=40°,∠APD=75°,
∴∠C=75°-40°=35°,
∴∠B=35°,
故答案为:35°.
如图,在⊙O中,弦AB,CD相交于点P.若∠A=40°,∠APD=75°,则∠B=_.
如图,在⊙O中,弦AB,CD相交于点P.若∠A=40°,∠APD=75°,则∠B=______.
数学人气:205 ℃时间:2019-12-14 01:27:19
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