Question

A floor is 5cm long and 4cm wide.A square carpet of side 3.5 cm is laid on the floor.Find the area of floor not carpeted.​

Answer 1

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• Length of Floor = 5cm
• Breadth of Floor = 4cm

Area of Floor = length × breadth

=> 4m × 5m = 20cm²

• Side of carpet = 3.5cm

Area of carpet = side × side [side²]

=> 3.5cm × 3.5cm = 12.25cm²

• To find area of floor which is not carpeted,

Area of uncarpeted = 20cm² - 12.25cm²

=> 7.75cm²