Advertisements
Advertisements
Question
Arbaz plans to tile his kitchen floor with green square tiles. Each side of the tile is 10 cm. His kitchen is 220 cm in length and 180 cm wide. How many tiles will he need?

Advertisements
Solution
- Area of floor
= length x width
= 220 x 180
= 39600 square cm - Area of a tile
= Side x Side
= 10 x 10
= 100 square cm - Number of tiles
= Area of floor + Area of tile
= 39600 + 100
= 396 tiles
APPEARS IN
RELATED QUESTIONS
When the planet Jupiter is at a distance of 824.7 million kilometres from the Earth, its angular diameter is measured to be 35.72″ of arc. Calculate the diameter of Jupiter
Match the following.
| Column A | Column B |
| (1) Length | a. kilogram |
| (2) Mass | b. cubic metre |
| (3) Area | c. metre |
| (4) Volume | d. square metre |
Solve the numerical example.
When the planet Jupiter is at a distance of 824.7 million kilometers from the Earth, its angular diameter is measured to be 35.72'' of arc. Calculate the diameter of Jupiter.
500 gm = ______ kilogram.
Assertion (A): Distance between two celestial bodies is measured in terms of light year.
Reason (R): The distance travelled by the light in one year is one light year.

What is Dinesh’s height in metres? _____ m _____ cm.
You can play this game on the ground. Make two squares of one square meter each. Divide your class into two teams. Ready to play!
- Which team could make more children stand in their square? How many?
So Anar also tried many different ways to make a boundary for 800 square meters of land.
He made rectangles A, B, and C of different sizes. Find out the length of the boundary of each. How much gold wire will he get for these rectangles?
- A
Gold wire for A = _________ metres - B

Gold wire for B = _________ metres - C
Gold wire for C = __________ metres
But then Anar made an even longer rectangle... See how long!
- D

So he will get __________ metres of gold wire!!
There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

- How many kilometers long is the actual boundary of lake A?
What are the materials needed to find the length of a banana?
The distance between one end and the other end is called ______.
Length is ______.
SI unit of electric current is ______.
Larger unit for measuring time is ______.
Yard was used as the unit of length.
The SI unit of mass is kg.
What is the SI unit of length?
Why is the speed of light used to define the metre?
The parallax method is used to measure astronomical distances because ______.
