Question

please answer the question ​

Answer 1

Answer:

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Answer 2

Answer:

8) (a+b)^2 = a^2+ 2ab+ b^2.

10) Perimeter of a square is 4×side.

=4× 5 = 20 cm.

Area of a square = side ×side.

5× 5= 25cm ^2.

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