Question

HOW DO I DO THIS?
If DE||AB, CE=6, BE=3, and AC=12, then AD=?

Answer 1

Answer:

AD = 4 cm

Step-by-step explanation:

In Triangle ABC : DE||AB, CE = 6 cm, AC = 12 cm, BE = 3 cm,

BC = BE+CE = 3+6 = 9 cm

Now, AD/AC = BE/BC                 [Basic Proportionality Theorem]

Substituting the given values, we get

=> AD/12 = 3/9

=> AD = 12*3/9

=> AD = 4 cm

Therefore, AD = 4 cm.