Advertisements
Advertisements
प्रश्न
Find the T.S.A and L.S.A of the cube whose side is 21 cm
उत्तर
21 cm
Side of a cube (a) = 21 cm
T.S.A of the cube = 6a2 sq.units
= 6 × 21 × 21 cm2
= 2646 cm2
L.S.A of the cube = 4a2 sq.units
= 4 × 21 × 21 sq.cm
= 4 × 441 cm2
= 1764 cm2
APPEARS IN
संबंधित प्रश्न
Find the volume of a cube whose side is 8 cm .
Suppose that there are two cubes, having edges 2 cm and 4 cm, respectively. Find the volumes V1and V2 of the cubes and compare them.
A beam 5 m long and 40 cm wide contains 0.6 cubic metre of wood. How thick is the beam?
Find the volume of a cube whose surface area is 150 m2 .
Each face of a cube has a perimeter equal to 32 cm. Find its surface area and its volume.
The lateral surface area of a cube of side 12 cm is
If the lateral surface area of a cube is 600 cm2, then the total surface area is
A cube of side 5 cm is painted on all its faces. If it is sliced into 1 cubic centimetre cubes, how many 1 cubic centimetre cubes will have exactly one of their faces painted?
A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the surface areas of the original cubes and cut-out cubes?
The surface area of a cube formed by cutting a cuboid of dimensions 2 × 1 × 1 in 2 equal parts is 2 sq. units.
