Advertisements
Advertisements
प्रश्न
A cubical container of side 6.5 m is to be painted on the entire outer surface. Find the area to be painted and the total cost of painting it at the rate of ₹ 24 per m2
Advertisements
उत्तर
Side of a cube (a) = 6.5 m
Total surface area of the cube = 6a2 sq.units
= 6 × 6.5 × 6.5 sq.m
= 253.50 sq.m
Cost of painting for 1 sq.m = ₹ 24
Cost of painting for 253.5 sq.m = 253.5 × 24
= ₹ 6084
∴ Area to be painted = 253.50 m2
Total cost of painting = ₹ 6084
APPEARS IN
संबंधित प्रश्न
If each edge of a cube is doubled, how many times will its volume increase?
Find the volume in cubic decimetre of the cube whose side is 2 dm 5 cm .
Fill in the blank in the following so as to make the statement true:
1 kl = ....... m3
Find the surface area of a cube whose volume is 343 m3.
Find the volume of a cube whose surface area is 150 m2 .
A metal cube of edge 12 cm is melted and formed into three smaller cubes. If the edges of the two smaller cubes are 6 cm and 8 cm, find the edge of the third smaller cube.
The edges of three cubes of metal are 3 cm, 4 cm, and 5 cm. They are melted and formed into a single cube. Find the edge of the new cube.
A square plate of side 'x' cm is 8 mm thick. If its volume is 2880 cm3; find the value of x.
Each face of a cube has a perimeter equal to 32 cm. Find its surface area and its volume.
If the lateral surface area of a cube is 600 cm2, then the total surface area is
