Question

Please help with geometry homework will make brainliest

Answer 1

Answer

3

Explanation

The two lines in the diagram are secants meeting outside the circle.  

The products of a secant and the extension of the chord of one line is equal to the products of a secant and the extension of the chord of the other line.

∴ 4 × 9 = x × 12

 36 = 12x

x = 36/12

  = 3