Advertisements
Advertisements
प्रश्न
The circumference of the base of a cylinder is 88 cm and its height is 15 cm. Find the volume of the cylinder.
उत्तर
\[\text { Let r cm be the radius of a cylinder } . \]
\[\text{ Circumference of the cylinder, } S = 2\pi r\]
\[\text{ Given: } \]
\[\text{ Height, h = 15 cm } \]
\[ \text{ Circumference, S = 88 cm } \]
\[ S = 2\pi r\]
\[88 = 2 \times \frac{22}{7} \times r\]
\[ r = \frac{88 \times 7}{44}\]
\[ r = 14 cm\]
\[\text{ Volume of cylinder, V } = \pi r^2 h\]
\[ = \frac{22}{7} \times {14}^2 \times 15\]
\[ = 9240 {\text{ cm } }^3\]
APPEARS IN
संबंधित प्रश्न
The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder.
Assume `pi = 22/7`
The radii of two cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3. Calculate the ratio of their curved surface areas.
The ratio between the curved surface area and the total surface area of a right circular cylinder is 1 : 2. Find the volume of the cylinder, if its total surface area is 616 cm2.
How many cubic metres of earth must be dug-out to sink a well 21 m deep and 6 m diameter?
2.2 cubic dm of brass is to be drawn into a cylindrical wire 0.25 cm in diameter. Find the length of the wire.
The ratio between the curved surface area and the total surface area of a right circular cylinder is 1 : 2. Find the volume of the cylinder, if its total surface area is 616 cm2.
Write the number of surfaces of a right circular cylinder.
A hollow square-shaped tube open at both ends is made of iron. The internal square is of 5 cm side and the length of the tube is 8 cm. There are 192 cm3 of iron in this tube. Find its thickness.
A well with 6 m diameter is dug. The earth taken out of it is spread uniformly all around it to a width of 2 m to form an embankment of height 2.25 m. Find the depth of the well.
The curved surface area of a cylinder is reduced by ______ per cent if the height is half of the original height.
