Question

How many tiles whose length and breadth are 12cm and 5cm respectively will be needed to cover a rectangular region whose length and breadth are respectively 70cm and 36cm

Answer 1

total area of rectangular region = l×b = 70×36 =2520 cm^2
total area of tile = 12× 5=60cm^2
total tiles = 2520/60 =42 tiles please follow me rock on..........

Answer 2

Answer:

Concept:

The area a rectangle occupies is the space it takes up inside the limitations of its four sides.

The dimensions of a rectangle determine its area. In essence, the area of a rectangle is equal to the sum of its length and breadth. In contrast, the circumference of a rectangle is equal to the product of its four sides. Consequently, we can say that the area of a rectangle equals the space enclosed by its perimeter. The area of a square will, however, be equal to the square of side-length in the case of a square because all of its sides are equal.

             Area of rectangle = Length x Breadth

                                        A = lb

Step-by-step explanation:

Given:

Each tile's length and breadth are 12cm and 5cm respectively.

Region length and breadth are 70cm and 36cm respectively.

Find:

How many tiles needed to cover the region

Solution:

We know that area of a rectangle is given by

Area of rectangle = length × width

Area of rectangle = 70 × 36

= 2520 $cm^{2}$

Area of one tile = 5 × 12

= 60 $cm^{2}$

Number of tiles = (Area of rectangle) / (Area of one tile)

= 2520 / 60

= 42

Hence, 42 tiles are required.

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