Question

17. Dimensions of hall is 20 mx12m Number of
4m square tiles by
which the floor can be
cevered:​

Answer 1

Answer:

15 tiles

Step-by-step explanation:

Dimensions of hall is given as 20 m × 12 m. This means that the floor of the hall is in the shape of rectangle.

Area of rectangle = Length × Breadth

→ Area of rectangle = 20 × 12

→ Area of rectangle = 240 m²

The tiles are in the shape of square of side 4 m.

Area of square = (side)²

→ Area of square = 4²

→ Area of square = 16 m²

Number of tiles that cover the hall

= Area of hall ÷ Area of tiles

= Area of rectangle ÷ Area of square

= 240 ÷ 16

= 15

∴ The number of tiles = 15

KNOW MORE:

• Perimeter of rectangle = 2 (Length + Breadth)
• Perimeter of square = 4 × side

Answer 2

$\sf\huge\bold{Answer:}$

Given :

Rectangular Hall with

• Length=20m
• Breadth=12m

Square tile with

• Side = 4m

To find :

Number of tiles required to cover the floor.

Solution :

Area of rectanglular hall= Length × Breadth

Area=20m×12m

Area=240m²

Area of each square tile=side²

Area=(4m)²

Area=16m²

Now,

Number of tiles needed to cover the floor of hall = Area of hall÷Area of each tile

Number of tiles = 240m²÷16m²

Number of tiles=15

15 ← tiles will be required to cover the floor of hall .