Advertisements
Advertisements
Question
A square plate of side 'x' cm is 8 mm thick. If its volume is 2880 cm3; find the value of x.
Advertisements
Solution
We know that
1 mm = `1/10` cm
8 mm = `8/10` cm
Volume = Base area × Height
⇒ 2880 cm3 = `x xx x xx 8/10`
⇒ `2880 xx10/8` = x2
⇒ x2 = 3600
⇒ x = 60 cm
APPEARS IN
RELATED QUESTIONS
Find the surface area of a cube whose edge is 3 cm.
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.
Three cubes whose edges measure 3 cm, 4 cm, and 5 cm respectively are melted to form a new cube. Find the surface area of the new cube formed.
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.
The ratio between the lengths of the edges of two cubes is in the ratio 3: 2. Find the ratio between their:
(i) total surface area
(ii) volume.
The total surface area of a cube is 294cm2. Find its volume.
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.
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?
If the ratio of the sides of two cubes are 2 : 3, then ratio of their surface areas will be
The surface area of a cube formed by cutting a cuboid of dimensions 2 × 1 × 1 in 2 equal parts is 2 sq. units.
