Advertisements
Advertisements
प्रश्न
Find the surface area of a cube whose edge is 2.1 m.
उत्तर
\[\text { Edge of the a cube = 2 . 1 m } \]
\[ \therefore\text { Surface area of the cube = 6 } \times \text { (side )}^2 = 6 \times (2 . 1 )^2 = 6 \times 4 . 41 = 26 . 46 m^2\]
APPEARS IN
संबंधित प्रश्न
Find the volume of a cube whose side is 1.2 m .
What will happen to the volume of a cube, if its edge is trebled?
Fill in the blank in the following so as to make the statement true:
1 cu. km = ........ cu. m
Cubes A, B, C having edges 18 cm, 24 cm and 30 cm respectively are melted and moulded into a new cube D. Find the edge of the bigger cube D.
The square on the diagonal of a cube has an area of 1875 sq. cm. Calculate:
(i) The side of the cube.
(ii) The total surface area of the cube.
Three solid cubes of edges 6 cm, 10 cm, and x cm are melted to form a single cube of edge 12 cm, find the value of x.
A solid cube of side 12 cm is cut into 8 identical cubes. What will be the side of the new cube? Also, find the ratio between the surface area of the original cube and the total surface area of all the small cubes formed.
The volume of a cube is 1331 cm3. Find its total surface area.
If the total surface area of a cube is 2400 cm2 then, find its lateral surface area
A cube of side 3 cm painted on all its faces, when sliced into 1 cubic centimetre cubes, will have exactly 1 cube with none of its faces painted.
