Conversion of Units (2D)

Q. Match the following units of area with their respective conversions.

1. 100 mm${}^2$
2. 10, 000 cm${}^2$
3. 10, 000 m${}^2$

Q. $20m^2$ = ____________ $m{m}^2$

1. $2,00,00,000m{m}^2$
2. $2,00,000m{m}^2$
3. $20,000m{m}^2$
4. $2,000m{m}^2$

Q.

Area of a square of side 1 cm has an area equal to the area of 10 squares, each of side 1mm.

1. False
2. True

Q. 1 $m^2$ = 10000 $c{m}^2$

1. False
2. True

Q. The shaded part in the given figure is covered with cement. If its costs Rs. $84$ to cement an area of $3$ $c{m}^2$, find the total cost of cementing.

1. Rs. $8820$
2. Rs. $8610$
3. Rs. $8125$
4. Rs. $8804$

Q. The area of a wall is 10m x 9m. If the size of one tile is 18cm x 20cm, then find the total number of tiles needed to tile the whole wall.

1. 4
2. 2500
3. 250
4. 400