Advertisements
Advertisements
प्रश्न
Find the T.S.A and L.S.A of the cube whose side is 21 cm
Advertisements
उत्तर
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
संबंधित प्रश्न
Find the side of a cube whose surface area is 600 cm2.
Find the volume of a cube whose side is 4 cm .
What will happen to the volume of a cube, if its edge is trebled?
A cube A has side thrice as long as that of cube B. What is the ratio of the volume of cube A to that of cube B?
Fill in the blank in the following so as to make the statement true:
1 cu. km = ........ cu. m
Find the volume of a cube whose surface area is 150 m2 .
Find the cost of sinking a tubewell 280 m deep, having diameter 3 m at the rate of Rs 3.60 per cubic metre. Find also the cost of cementing its inner curved surface at Rs 2.50 per square metre.
Total surface area of a cube is 5400 sq. cm. Find the surface area of all vertical faces of the cube.
A cube of side 3 cm painted on all its faces, when sliced into 1 cubic centimetre cubes, will have exactly 1 cube with none of its faces painted.
The surface area of a cube formed by cutting a cuboid of dimensions 2 × 1 × 1 in 2 equal parts is 2 sq. units.
