Question

solve this question please

Answer 1

here x = 30 because AO = OB radius

here BO = OC

so angle CBO = 30

and angle DOA = 90

so 1 angle is given as 30

so another one should be 15

because these two angles are 1/2 of angle DOA

angle y = 15

Answer 2

Answer:

Step-by-step explanation: