Area of Regular Shapes

Q.

Area of an irregular surface can be measured using a _______________.

Q.

How will you measure the area of an irregular shape?

Q.

The area of a/an_______ surface can be determined by a standard ________ and ________method.

Q.

The length of a rectangle is $10cm$ and breadth is $7cm$. What will be the area of a rectangle formed by joining $12$ of these rectangles?

1. $440m^2$

2. $840c{m}^2$

3. $840m^2$

4. $440c{m}^2$

Q.

The surface area of an irregular-shaped sheet can be easily determined by the use of graph paper.

1. True
2. False

Q.

The area of an irregular surface can be estimated by using a graph paper.

1. True
2. False

Q.

Find the surface area of a circular park having diameter 50m.

1. 200$m^2$

2. 1962.5$c{m}^2$

3. 1962.5$m^2$

4. 2000$c{m}^2$

Q. A circle perfectly fits in a square of side 1 metre. So, the area of the circle would be 1 metre square.

1. greater than
2. less than
3. equal to

Q. The area of a square whose each side is equal to $1km$ is equal to one square kilometre.

1. False
2. True

Q.

The area of the given figure will be

1. $60sq.units$

2. $72sq.units$

3. $66sq.units$

4. $96sq.units$

Q.

Which has more area , a square of side $11\frac{1}{2}$m , area of rectangle with sides $10\frac{1}{3}$ m and $12\frac{1}{2}$ m and by how much ?

Q.

The area of the given figure will be

1. 94 sq.units

2. 92 sq.units

3. 90 sq.units

4. 93 sq.units

Q.

2. Each question carries $2$ marks.

(v) Find the area of a square whose perimeter is$16m$.

Q.

Area of square =$\_\_\_\_\_\_$

Q.

Find the surface area of a circular park having diameter 50m. (Take $\pi =3.14$)

1. 2000$c{m}^2$

2. 1962.5$m^2$

3. 1962.5$c{m}^2$

4. 200$m^2$

Q.

The area of a square is $16c{m}^2$. The area of the rectangle with length equal to double the side of the square and breadth equal to half of the side of the square is ___$c{m}^2$

1. 26

2. 32

3. 16

4. 12

Q.

The length of a rectangle is $10cm$ and breadth is $7cm$. What will be the area of a rectangle formed by joining $12$ of these rectangles?

1. 250 cm

2. 100 cm

3. 680 cm

4. 460 cm