Question

Solve For X
(see picture below)

thank you!

Answer 1

x = 12

Explanation:

Given a tangent and a secant from an external point to the circle, then

The square of the tangent is equal to the product of the external part and the entire secant, that is

x² = 6(6 + 18) = 6 × 24 = 144 ( take the square root of both sides )

x =
`√(144)` = 12