Question

CD←→ is tangent to circle A at point B.

What is the measure of ∠ABD?




45º

60º

90º

180º

Answer 1

I just took my quiz and the correct answer is 90.

Answer 2

The measure $\angle ABD$ is C. $90^{\circ}$

Given,

CD is tangent to the circle A at point B.

We have to find the measure of $\angle$$ABD$.

Tangent:

We know that,

• Tangent to a circle is the line that touches the circle at only one point. There can be only one tangent on a point to circle.
• The Tangent makes an angle of $90^{\circ}$ with the radius of the circle at the point of contact.

Hence $\angle ABD$ is $90^{\circ}$.The correct option is C. $90^{\circ}$

For more details about tangent, follow the link:

https://brainly.com/question/1503247