Use the figure to answer the questions.

Part A. Explain why the triangles are similar.

Triangle ___ and Triangle___ are similar by the _ postulate. This postulate works because...
(explain your reasoning here)

Part B. Find the value of y.
(show your work)

Please help! Thank you so much I appreciate it!

a) Triangle ABE is similar to Triangle DCE by Angle-Angle-Angle postulate.

b) 4 cm

Step-by-step explanation:

a) angle A = angle D

And

angle B = angle C

(Alternate angles)

Angle AEB = Angle DEC

(Vertically opposite angles)

All three angles are equal, hence triangles are similar

b)

AB/DC = AE/DE

6/15 = y/10

y = 6×10/15

y = 4

450 is the final answer! : )

theres no picture: /

step-by-step explanation: