Advertisements
Advertisements
प्रश्न
The volume of a right circular cone whose area of the base is 156 cm2 and the vertical height is 8 cm, is ______.
पर्याय
2496 cm3
1248 cm3
1664 cm3
416 cm3
उत्तर
The volume of a right circular cone whose area of the base is 156 cm2 and the vertical height is 8 cm, is 416 cm3.
Explanation:
Given, height of cone (h) = 8 cm
Area of base = πr2 = 156 cm2
Now, volume of cone = `1/3 πr^2h`
= `1/3 xx 156 xx 8`
= 52 × 8
= 416 cm3
APPEARS IN
संबंधित प्रश्न
From each end of a solid metal cylinder, metal was scooped out in hemispherical from of same diameter. The height of the cylinder is 10 cm and its base is of radius 4.2 cm.
The rest of the cylinder is melted and converted into a cylindrical wire of 1.4 cm thickness. Find the length of the wire [Use π=22/7]
How many spherical lead shots of diameter 4 cm can be made out of a solid cube of lead whose edge measures 44 cm .
Two cones with same base radius 8 cm and height 15 cm are joined together along their bases. Find the surface area of the shape formed.
A right circular cylinder of radius r and height h (h = 2r) just encloses a sphere of diameter
If two solid-hemisphere s of same base radius r are joined together along their bases , then curved surface area of this new solid is
A solid cylinder of radius r and height h is placed over other cylinder of same height and radius. The total surface area of the shape so formed is ______.
During conversion of a solid from one shape to another, the volume of the new shape will ______.
How many spherical lead shots of diameter 4 cm can be made out of a solid cube of lead whose edge measures 44 cm.
A solid metallic hemisphere of radius 8 cm is melted and recasted into a right circular cone of base radius 6 cm. Determine the height of the cone.
A rocket is in the form of a right circular cylinder closed at the lower end and surmounted by a cone with the same radius as that of the cylinder. The diameter and height of the cylinder are 6 cm and 12 cm, respectively. If the slant height of the conical portion is 5 cm, find the total surface area and volume of the rocket [Use π = 3.14].