Answer:
The answer y = 8 units.
Explanation:
Given:
ABCD ~ FECG
EC =5
BE =5
∴ BC = BE + EC = 5 + 5 = 10 ......{ B-E-C}
FG = 4
To Find:
AD = y = ?
Solution:
If Two Figure are Similar then the sides are in proportion, and the corresponding angles are equal.
ABCD ~ FECG
∴

substituting the given values we get
∴

∴ AD = y = 8 units