Question

20. Please help. What is the length of PD⎯⎯⎯⎯⎯⎯⎯⎯?

Answer 1

Answer: PD = 6

Explanation:

PD = PB + AB = 12

When two secant lines intersect each other outside a circle, the products of their segments are equal. This is:

PB x PA = PD x PC

7 x 12 = PD x 14

PD = 7 x 12 / 14

PD = 6

Answer 2

The correct answer is 6, so the first option.