Question

What is the length of AD?

Answer 1

Answer:

Length of $\overline{AD}$  is 11 unit.

Step-by-step explanation:

Given: AB = 7 unit   , AC = 6 unit   and AE = 13 unit

To find: length of $\overline{AD}$

We use the Intersection secants theorem which states that If two secant segments are drawn to a circle from an exterior point, then the product of the one secant segment and its external secant segment is equal to the product of the other secant segment and its external secant segment.

According to this,

we have

AB × AD = AC × AE

7 × AD = 6 × 13

AD = $\frac{78}{7}$

AD = 11.14 unit

AD = 11 unit ( approx. )

Therefore, Length of $\overline{AD}$  is 11 unit.

Answer 2

The answer is 15
hope it helped