The distance from the external point ^2 = The external segment of the secant * the full length of the secant. tangent distance = 6 External portion of the secant = 3 Full length of the secant = x + 3
6^2 = 3*(x + 3) Remove the brackets. 36 = 3x + 9 Subtract 9 from both sides. 36 - 9 = 3x 27 = 3x Divide by 3 x = 9 <<<<<<<Answer.
