Given: The sheet of paper is in rectangular form.
Length of sheet = (12) 1/2 cm and Breadth of sheet = (10) 2/3 cm
Perimeter of rectangle = 2 (length + breadth)
= 2((12)1/2+(10)2/3) = 2(25/2+32/3)
= 2(25×3+32×2/6) = 2(75+64/6)
= 2×139/6 = 139/3 = (46)1/3
Thus, the perimeter of the rectangular sheet is (46)1/3 cm.

Exercise 2.1 Question 2, 3, 4

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