Free Printable Class-8, (Area)

1.

If a rectangle has length and breadth 6x and 4x respectively, for what value of x the area of rectangle will be 96cm²?

a)

3cm

b)

2cm

c)

4cm

d)

6cm

2.

Find the area of an equilateral triangle of perimeter 30cm.

a)

$250\sqrt{3}$ cm

b)

$25\sqrt{3}$ cm

c)

25cm

d)

30cm

3.

Find the length of a side of an equilateral triangle having area $484\sqrt{3}$ cm².

a)

64cm

b)

54cm

c)

40cm

d)

44cm

4.

Which is the formula to find the area of an isosceles triangle?

a)

$\sqrt{s\left(s-a\right)\left(s-b\right)\left(s-c\right)}$

b)

$\frac{\sqrt{3}}{4}a²$

c)

$.$ $\frac{1}{2}b×h$

d)

$\frac{b}{4}\sqrt{4a²-b²}$

5.

Choose the correct formula to find the area of trapezium.

a)

$A=\frac{1}{2}h\left(p_1+p_2\right)$

b)

$A=\frac{1}{2}d\left(p_1+p_2\right)$

c)

$A=\frac{1}{2}d_1×d_2$

d)

A=b×h

6.

The area of a square is 64 cm². Find the perimeter of the square.

a)

8cm

b)

32cm

c)

36cm

d)

16cm

7.

Find the area of a field in the form of a trapezium, whose parallel sides are 10m and 12m and height of that trapezium is 6m.

a)

66m²

b)

28m²

c)

132m²

d)

56m²

8.

Find the area of the given figures.

a)

108cm²

b)

51cm²

c)

29cm²

d)

102cm²

9.

Find the area of the given figures.

a)

50cm²

b)

25cm²

c)

15cm²

d)

5cm²

10.

Find the area of the given figure.

a)

30cm²

b)

50cm²

c)

100cm²

d)

200cm²

Class-8, (Area)

Total questions: 10

Worksheet time: 18mins

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