Advertisements
Advertisements
प्रश्न
The length of the longest pole that can be kept in a room (12 m × 9 m ×8 m) is
विकल्प
29 m
21 m
19 m
17 m
उत्तर
17 m
Length of the longest pole that can be kept in a room = Length of the diagonal of the room
`=sqrt("l"^"2+""b"^2 + "h"^2 m)`
`= sqrt((12)^2 + (9)^2 + (8)^2 "m")`
`= sqrt(289) "m"`
`= 17 "m"`
APPEARS IN
संबंधित प्रश्न
Find the volume of a cone if the radius of its base is 1.5 cm and its perpendicular height is 5 cm.
Water flows at the rate of 10 m / minute through a cylindrical pipe 5 mm in diameter . How long would it take to fill a conical vessel whose diameter at the base is 40 cm and depth 24 cm.
A metallic sphere of radius 10.5 cm is melted and thus recast into small cones, each of radius 3.5 cm and height 3 cm. Find how many cones are obtained.
The curved surface area of a cylinder is 264 m2 and its volume is 924 m3. The ratio of its diameter to its height is
A solid metallic spherical ball of diameter 6 cm is melted and recast into a cone with diameter of the base as 12 cm. The height of the cone is
If each edge of a cube is increased by 50%, the percentage increase in the surface area is
The surface area of a sphere is 154 cm2. The volume of the sphere is
A surahi is the combination of ______.
Ratio of area of a circle to the area of a square whose side equals radius of circle is 1 : π.
A rectangular examination hall having seats for 500 candidates has to be built so as to allow 4 cubic metres of air and 0.5 square metres of floor area per candidate. If the length of hall be 25 m, find the height and breadth of the hall.
