Length and breadth of a rectangular sheet of paper are 20cm and10cm, respectively. A rectangular piece is cut from the sheet as shown in Fig. 6.6. Which of the following statements is correct for the remaining sheet?


Perimeter of the rectangle = 2× (l + b)


Area of the rectangle = l × b


After looking at the formula it can be interpreted as that the area depend upon the length and breadth of the rectangle.


Perimeter of old rectangle = 2 × (l + b)


= 2 × (20 + 10)


= 60 cm


Perimeter of new figure = 20 + 10 + 15 + 2 + 5 + 8


= 60 cm.


So perimeter remains same.


Area will change because the new figure’s area = Area of old rectangle – Area of smaller rectangle


So correct answer is A.

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