Answer:
CD = 27
Step-by-step explanation:
Given the triangles are similar then the ratios of corresponding sided are equal, that is
[tex]\frac{CD}{KD}[/tex] = [tex]\frac{CB}{KL}[/tex] , substitute values
[tex]\frac{CD}{9}[/tex] = [tex]\frac{30}{10}[/tex] = 3 ( multiply both sides by 9 )
CD = 27
