A rectangular sheet of paper is 12 (1/2) cm long and 10 (2/3) cm wide.

1.	A rectangular sheet of paper is 12 (1/2) cm long and 10 (2/3) cm wide. Find its perimeter.
Answer» Given length of rectangular sheet of paper is 12 (1/2) i.e. (25/2) Breadth of rectangular sheet of paper is 10 (2/3) i.e. (32/3) But we know that perimeter of rectangle = 2 (length + breadth) Perimeter of rectangular sheet = 2 [(25/2) + (32/3)] LCM of 2 and 3 is 6, by taking this and simplifying we get Perimeter = 2[(25 × 3)/6 + (32 × 2)/6] = 2[(75/6) + (64/6)] = 2(139/6) = (139/3) = 46 (1/3) cm

A rectangular sheet of paper is 12 (1/2) cm long and 10 (2/3) cm wide. Find its perimeter.

Answer»

Given length of rectangular sheet of paper is 12 (1/2) i.e. (25/2)

Breadth of rectangular sheet of paper is 10 (2/3) i.e. (32/3)

But we know that perimeter of rectangle = 2 (length + breadth)

Perimeter of rectangular sheet = 2 [(25/2) + (32/3)]

LCM of 2 and 3 is 6, by taking this and simplifying we get

Perimeter = 2[(25 × 3)/6 + (32 × 2)/6]

= 2[(75/6) + (64/6)]

= 2(139/6)

= (139/3)

= 46 (1/3) cm