Question

20 points!

CD←→ is tangent to circle A at point B.What is the measure of ∠ABD?
Please contact your teacher immediately if you do not see the image.

Question options:

45°

60°

90°

190°

Answer 1

Answer Is Option C
ABD=90°

Answer 2

hey friend angle ABD=90°

because the radius falling on a tangent create a right angle