Need it 20 prove c-2 as an activity.

For completing the proof we need to understand the following definitions:  

Similar triangles: If two triangles are similar then their corresponding angles are equal.

By the transitive property of equality if a = b, and b= c then a = c.

AA postulate of similarity states that when two corresponding angles of two triangles are equal then they are called similar to each other.

Now, the complete proof is mentioned below,

Given :

To Prove :

  ( Given )

,  ( By the Definition of similar triangles)

,

,   (By the transitive property of equality)

( By AA similarity postulate)

Hence proved.

555.99.

step-by-step explanation:

hope this