Question

Q.2Match the column.

1. (a+b)2 - a2-b2


2. (a+b) (a-b) - a2- 2ab+b2


3. (a-b)2
- a2+2ab+b2


4. perimeter of parallelogram

- 180


5. sum of all angles of a triangle - sum of all four sides​

Answer 1

Answer:

(a-b)2 - a2+2ab+b2 4. perimeter of parallelogram - 180 5. sum of all angles of a triangle - sum of all four sides.