Answer:
Its the one at the bottom on the left
Step-by-step explanation:
It is that one because one its a polygon and has angles and is congruent
Answer:

Step-by-step explanation:
Given

Required: Express as a perfect square

Add 10 to both sides


Expand

Factorize:

Factorize:


Answer:
I think you forgot to add the picture.
Answer:
20
Step-by-step explanation:
Answer:C
Step-by-step explanation: