Advertisements
Advertisements
Question
How many square slabs each with side 90cm are needed to cover a floor of area 81 sq m.
Solution
Given, side of square slab = 90 cm
∴ Area of square slab = Side × Side = 90 × 90 = 8100 sq cm
Given, area = 81 sq m
∵ 1 m = 100 cm
1 sq m = 100 × 100 cm = 10000 cm
And 81 sq m = 810000 sq cm
Now, number of slabs = `"Area of floor"/"Area of one square slab" = 810000/8100` = 100
APPEARS IN
RELATED QUESTIONS
The length of the side of the square is given below. Find its area.
12 metre
The length of the side of a square is given below. Find its area
5 cm
Area of a square is doubled if the side of the square is doubled.
The length of a rectangular field is 8 m and breadth is 2 m. If a square field has the same perimeter as this rectangular field, find which field has the greater area.
The side of a square is 5 cm. How many times does the area increase, if the side of the square is doubled?
The area of each square on a chess board is 4sqcm. Find the area of the board.
(a) At the beginning of game when all the chess men are put on the board, write area of the squares left unoccupied.
(b) Find the area of the squares occupied by chess men.
What is the area of each small square in the given figure. if the area of entire figure is 96 sq cm. Find the perimeter of the figure.
Area of a square of side 6 m is equal to the area of ______ squares of each side 1 cm.
A room is 4.5 m long and 4 m wide. The floor of the room is to be covered with tiles of size 15 cm by 10 cm. Find the cost of covering the floor with tiles at the rate of ₹ 4.50 per tile.
Calculate the area of shaded region in the given figure, where all of the short line segments are at right angles to each other and 1 cm long.
