LM is a common tangent. PL=10, QM=2, and LM=20. Find the measure of LN.
Answer:
25cm
Step-by-step explanation:
using similar triangles.
10/2 = (20+y)/y
where y is length of MN
10y = 40+2y
40= 8y
y= 5.
LN = LM + MN
= 20+5
25cm