Class-8 Maths quiz

If the length and breadth of a rectangle are 15cm and 10cm, respectively, then its area is:

A. 100 sq.cm

B. 150 sq.cm

C. 115 sq.cm

D. 200 sq.cm

• a

• b

• c

• d

The area of a rhombus whose diagonals are of lengths 10 cm and 8.2 cm is:

A. 41 cm2

B. 82 cm2

C. 410 cm2

D. 820 cm2

• a

• b

• c

• d

The area of a trapezium is 480 cm2, the distance between two parallel sides is 15 cm and one of the parallel side is 20 cm. The other parallel side is:

A. 20 cm

B. 34 cm

C. 44 cm

D. 50 cm

• a

• b

• c

• d

The area of a rhombus is 240 cm2 and one of the diagonals is 16 cm. Find the other diagonal.

A. 16 cm

B. 20 cm

C. 30 cm

D. 36 cm

• a

• b

• c

• d

A cuboid has ______ pairs of identical faces.

A. 2

B. 3

C. 4

D. 5

• a

• b

• c

• d

All six faces of a cube are:

A. Identical

B. Different

C. Circular

D. Rectangular

• a

• b

• c

• d

A cylindrical box has ____ curved surface and ____ circular faces, which are identical.

A. One, One

B. One, two

C. two, one

D. two, two

• a

• b

• c

• d

If a cuboidal box has height, length and width as 20 cm, 15 cm and 10 cm respectively. Then its total surface area is:

A. 1100 cm2

B. 1200 cm2

C. 1300 cm2

D. 1400 cm2

• a

• b

• c

• d

The height of a cylinder whose radius is 7 cm and the total surface area is 968 cm2 is:

A. 15 cm

B. 17 cm

C. 19 cm

D. 21 cm

• a

• b

• c

• d

The height of a cuboid whose volume is 275 cm3 and base area is 25 cm2 is:

A. 10 cm

B. 11 cm

C. 12 cm

D. 13 cm

• a

• b

• c

• d