Solve the question below.
a. 3
b. 7.5
c. 4.5
d. 6

3

Step-by-step explanation:

Triangle ABO is a right triangle, and so we can use the Pythagorean Theorem to find the radius, r:

r² + 6² = 7.5²,  or  r² = 56.25 - 36 = 20.25

Taking the square root of both sides yields r = √20.25 = 4.5.

If the radius is 4.5, then subtracting this from 7.5 yields 3, the distance between point A and the rim of the circle.

The desired distance is 3 (Answer A).