Answer:
x = 3
Step-by-step explanation:
Two chords of a circle intersect then the product of one chord is equal to the product of the parts of the other chord, that is
4x × x = 9 × 4
4x² = 36 ( divide both sides by 4 )
x² = 9 ( take the square root of both sides )
x = [tex]\sqrt{9}[/tex] = 3
