C and D are points on the semicircle described on BA as diameter. Given ∠BAD=70°and ∠DBA=30°. Find ∠ABD and ∠BDC

C and D are points on the semicircle described on BA as diameter. Given $∠ B A D = 70 ° a n d ∠ D B A = 30 ° . F i n d ∠ A B D a n d ∠ B D C$

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