9 MATHS 4

The formula to find the surface area of a cuboid of length (l), breadth (b) and height (h) is:

• lb+bh+hl

• 2(lb+bh+hl)

• 2(lbh)

• lbh/2

The surface area of a cube whose edge equals to 3cm is:

• 62 sq.cm

• 30 sq.cm

• 54 sq.cm

• 90 sq.cm

The surface area of cuboid-shaped box having length=80 cm, breadth=40cm and height=20cm is:

• 11200 sq.cm

• 13000 sq.cm

• 13400 sq.cm

• 12000 sq.cm

 The total surface area of a cube is 96 cm2. The volume of the cube is:

•  $8\ cm^3$  

•  $512\ cm^3$  

•  $64\ cm^3$  

•  $27\ cm^3$  

The lateral surface area of a cube of side 12 cm i

• $144\ cm^2$

• $196\ cm^2$

• $576\ cm^2$

• $664\ cm^2$

If the ratio of the sides of two cubes are 2 : 3, then ratio of their surface areas will be

• 4:6

• 4:9

• 6:9

• 16:36

The capacity of a water tank of dimensions 10 m × 5 m × 1.5 m is

• 75 litres

• 750 litres

• 7500 litres

• 75000 litres

The number of bricks each measuring 50 cm × 30 cm × 20 cm that will be required to build a wall whose dimensions are 5m × 3m × 2m is

• 1000

• 2000

• 3000

• 5000

The volume of a cuboid is 660   $cm^3$   and the area of the base is 33      $cm^2$  . Its height is

• 10 cm

• 12 cm

• 20 cm

• 22 cm

The total surface area of a cuboid with dimension 10 cm × 6 cm × 5 cm is

• $280\ cm^2$

• $300\ cm^2$

• $360\ cm^2$

• $600\ cm^2$