Question

please give me the answer of 2nd no question ​

Answer 1

in traingle APR we have AP=PR (radius of circle ) so angle PAR and angle PRA equal

in traingle RQB we have RQ= BQ (radius of circle)

so angle QRB and angle QBR equal

and we kone tha angle PRA equal to angle QRB

so the rest angle of the both triangle Angle equal hence the two triangle are equal