Mensuration

Area of a triangle with base (b) and height (h) is

• b.h

• ½ b.h

• 2b.h

• None of the above

Area of the square with side-length ‘a’ is

• 2a

• 4a

• a/2

• a²

Area of a circle with radius ‘r’ is:

• πr²

• ½ πr²

• 2πr²

• 4πr²

1 cm is equal to how many millimeters?

• 10

• 100

• 1000

• None of the above

Surface area of cube of edge ‘a’ is:

• 4a²

• 6a²

• 3a²

• a²

Volume of a cuboid of length (l), width (w) and height (h) is:

• lbh

• lb + bh + hl

• 2 (lb + bh + hl)

• 2 (l + b) h

1 litre is equal to how many cubic centimeters?

• 10 cu.cm

• 100 cu.cm

• 1000 cu.cm

• 10000 cu.cm

The perimeter of a rectangle with length (l) and width (w) is:

• l+w

• 2(l+w)

• (l+w)²

• lw

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

• 100 sq.cm

• 150 sq.cm

• 115 sq.cm

• 200 sq.cm

Answer explanation

Length = 15 cm

And breadth = 10 cm

Area of rectangle = Length x breadth

= 15 x 10

= 150 sq.cm

All six faces of a cube are:

• Identical

• Different

• Circular

• Rectangular