Question: If the radius of a circle is 7 units, what is the length of a tangent drawn from a point 10 units away from the center?

Options:

1. 5
2. 7
3. 10
4. 12

Correct Answer: 5

Solution:

Using the tangent length formula: length = √(distance from center² - radius²) = √(10² - 7²) = √(100 - 49) = √51 ≈ 7.14.