find the value of ang.ADB
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60 degree
soln. join oa and ob now ang. apo must equal to ang. opb thats why ang. apb will be 60 degree and then oapb is cyclic quad. so ang. aob will be 120 degree and ab also make ang. adb which will be half of ang. made by ab at centre so ang. asb will be half of 120 means 60
soln. join oa and ob now ang. apo must equal to ang. opb thats why ang. apb will be 60 degree and then oapb is cyclic quad. so ang. aob will be 120 degree and ab also make ang. adb which will be half of ang. made by ab at centre so ang. asb will be half of 120 means 60
thank you soo much
wlcm
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