Advertisements
Advertisements
प्रश्न
The length of the diagonals of a cube is 8√3 cm.
Find its:
(i) edge
(ii) total surface area
(iii) Volume
Advertisements
उत्तर
(i) Length of diagonal of a cube = `8sqrt(3)` cm
Length of edge = `(8sqrt(3))/sqrt(3)` = 8 cm
(ii) Total surface area = 6a2 = 6 x 82 = 6 x 64 cm2 = 384 cm2
(iii) Volume = a3 = (8)3= 512 cm3
APPEARS IN
संबंधित प्रश्न
Describe how the two figures at the right are alike and how they are different. Which box has larger lateral surface area?
Find the volume of a cube whose side is 1.5 dm .
Find the volume in cubic decimetre of the cube whose side is 1.5 m.
Find the surface area of a cube whose edge is 6 m .
Find the length of 13.2 kg of copper wire of diameter 4 mm, when 1 cubic cm of copper weighs 8.4 gm.
When the length of each side of a cube is increased by 3 cm, its volume is increased by 2457 cm3. Find its side. How much will its volume decrease, if the length of each side of it is reduced by 20%?
The length of a hall is double its breadth. Its height is 3 m. The area of its four walls (including doors and windows) is 108 m2, find its volume.
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.
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
