Question

A strip of width 3 cm is cut out all round from a sheet of paper with dimensions 30 cm × 20 cm. Find the area of the strip cut out and the area of the remaining sheet.

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Answer 1

Step-by-step explanation:

hey mate here is your answer :

Let ABCD denotes the rectangle.

Length of the sheet = 30 cm

Breadth of the sheet = 20 cm

Area of the sheet = (30×20)=600cm^2

A strip of width 3 cm is cut out all round from a sheet of paper

Let that form a rectangle PQRS

Length of the rectangle PQRS = 30-3-3 = 24 cm

Breadth of the rectangle = 20-3-3 = 14 cm

Area of the rectangle PQRS = 24×14=336cm^2

Area of the strip cut out = Area of ABCD - Area of PQRS = 600cm^2−336cm^2=264cm^2

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