If line ab is tangent to circle c , find AC?
Can anyone help?

Step-by-step explanation:

If AB is tangent to the circle, the AB makes a right angle with the radius BC. That means that triangle ABC is a right triangle and we need Pythagorean's Theorem to find the missing side which is the hypotenuse.

and filling in:

and

and

so

≈ 16.64

its 4 because 2 times 2 is 4, if you double the number two you get four

29933333.33

step-by-step explanation: