Measurement of Area

Q.

The amount of space inside the boundary of a $2-\text{D}$ shape is:

1. perimeter

2. diagonal

3. area

4. circumference

Q.

The area of a circle is $\pi a^2$, then the radius of the circle is ____.

1. $a$

2. $2a$

3. $\frac{a}{2}$

4. $a^2$

Q. Which of the following unit is used for the area of a surface?

1. $km{h}^{-1}$
2. $m^2$
3. $m^3$
4. $\text{Litre}$

Q.

Area of a square of side $1metre$ is _________.

Q.

One hectare is the area of a square whose side is one decameter long

1. True
2. False