About 2983 ft as you find the circumfrence and mult by 5
5 * -2 + 10
-10 + 10
The answer is 0
Given:
Diagram of a circle and its two secant from an exterior point.
To find:
The value of x.
Solution:
We know that, If two secant are on a circle from an exterior point, then the products of measure of secants and measure of external segments of secants are equal.
Using the above property, we get




Splitting the middle term, we get



Using zero product property, we get
and 
and 
Side cannot be negative.
Therefore, the only possible value of x is 1.