A room is 4 m long and 3 m 50 cm wide. How many square metres of carpet is needed to cover the floor of the room?
We know that,
Area of rectangle = Length × Breadth
It is given in the question that,
Length of rectangle = 4 m
Breadth of rectangle = 3 m50 cm = 3.5 m
Therefore,
Area of floor = Length × Breadth
= 4 × 3.5
= 14 m2