Advertisements
Advertisements
Question
Find the T.S.A and L.S.A of the cube whose side is 21 cm
Advertisements
Solution
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
RELATED QUESTIONS
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?
Find the volume in cubic decimetre of the cube whose side is 1.5 m.
Find the volume of a cube whose surface area is 96 cm2.
Two cubes, each of volume 512 cm3 are joined end to end. Find the surface area of the resulting cuboid.
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.
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.
Three equal cubes are placed adjacently in a row. Find the ratio of the total surface area of the resulting cuboid to that of the sum of the total surface areas of the three cubes.
Find the T.S.A and L.S.A of the cube whose side is 8 m
If the total surface area of a cube is 2400 cm2 then, find its lateral surface area
