In the diagram |XY| = 12cm, |XZ| = 9cm, |ZN| = 3cm and ZY||NM, calculate |MY|
-
A.
3cm -
B.
4cm -
C.
5cm -
D.
6cm
Correct Answer: Option B
Explanation
(frac{|YM|}{|YX|} = frac{|ZM|}{|ZX|})
(frac{|YM|}{12} = frac{3}{9})
|YM| = 3 x (frac{12}{9})
|MY| = 4cm