Advertisements
Advertisements
Question
Side of a cube is 4.5 cm. Find the surface area of all vertical faces and total surface area of the cube.
Advertisements
Solution
Side of the cube, l = 4.5 cm
∴ Surface area of all vertical faces of the cube = 4l2
= 4 × (4.5 cm)2
= 4 × 20.25 cm2
= 81 cm2
Also,
Total surface area of the cube = 6l2
= 6 × (4.5 cm)2
= 6 × 20.25 cm2
= 121.50 cm2
Thus, the surface area of all the vertical faces and total surface area of the cube is 81 cm2 and 121.50 cm2, respectively.
APPEARS IN
RELATED QUESTIONS
Find the side of a cube whose surface area is 600 cm2.
If each edge of a cube is doubled, how many times will its volume increase?
Find the volume of a cube whose side is 4 cm .
Find the volume of a cube whose side is 1.5 dm .
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.
Fill in the blank in the following so as to make the statement true:
1 m3 = .........cm3
Fill in the blank in the following so as to make the statement true:
1 litre = ....... cubic decimetre
Find the surface area of a cube whose edge is 27 cm.
Find the surface area of a cube whose edge is 2.1 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 volume of a cube is 729 cm3. Find its total surface area.
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.
Find the volume of a cube whose diagonals is `sqrt(48)"cm"`.
The base of a rectangular container is a square of side 12 cm. This container holds water up to 2 cm from the top. When a cube is placed in the water and is completely submerged, the water rises to the top and 224 cm3 of water overflows. Find the volume and surface area of the cube.
One side of a cubic box is 0.4 m. How much will it cost to paint the outer surface of the box at the rate of 50 rupees per sqm?
Find the T.S.A and L.S.A of the cube whose side is 7.5 cm
If the total surface area of a cube is 2400 cm2 then, find its lateral surface area
The surface area of a cube formed by cutting a cuboid of dimensions 2 × 1 × 1 in 2 equal parts is 2 sq. units.
