CBSE Class 9 Maths

Topic	Replies	Views	Activity
Twenty seven solid iron spheres, each of radius r and surface area S are melted surface-area-volume , class-9-maths	1	1858	April 10, 2019
A dome of a building is in the form of a hemisphere. From inside, it was white washed surface-area-volume , class-9-maths	1	1788	April 10, 2019
Find the volume of a sphere whose surface area is 154 cm2 surface-area-volume , class-9-maths	1	1314	April 10, 2019
A hemispherical tank is made up of an iron sheet 1 cm thick surface-area-volume , class-9-maths	1	1693	April 10, 2019
How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold? surface-area-volume , class-9-maths	1	2207	April 10, 2019
The diameter of a metallic ball is 4.2 cm. What is the mass of the ball surface-area-volume , class-9-maths	1	1175	April 10, 2019
Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm (ii) 0.21 m surface-area-volume , class-9-maths	1	1940	April 10, 2019
Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 cm surface-area-volume , class-9-maths	1	2760	April 10, 2019
If the triangle ABC in the Question 7 above is revolved about the side 5 cm surface-area-volume , class-9-maths	1	1122	April 10, 2019
A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12 cm surface-area-volume , class-9-maths	1	972	April 10, 2019
The volume of a right circular cone is 9856 cm3. If the diameter of the base is 28 cm surface-area-volume , class-9-maths	1	1832	April 10, 2019
A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity in kilolitres? surface-area-volume , class-9-maths	1	1673	April 10, 2019
If the volume of a right circular cone of height 9 cm is 48 cm3, find the diameter of its base surface-area-volume , class-9-maths	1	287	April 10, 2019
The height of a cone is 15 cm. If its volume is 1570 cm3, find the radius of the base surface-area-volume , class-9-maths	1	1010	April 10, 2019
Find the capacity in litres of a conical vessel with radius 7 cm, slant height 25 cm surface-area-volume , class-9-maths	1	1685	April 10, 2019
Find the volume of the right circular cone with radius 6 cm, height 7 cm surface-area-volume , class-9-maths	1	2036	April 10, 2019
A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm surface-area-volume , class-9-maths	1	1107	April 10, 2019
A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior surface-area-volume , class-9-maths	1	1135	April 10, 2019
The capacity of a closed cylindrical vessel of height 1 m is 15.4 litres surface-area-volume , class-9-maths	1	1340	April 10, 2019
It costs ₹2200 to paint the inner curved surface of a cylindrical vessel 10 m deep surface-area-volume , class-9-maths	1	788	April 10, 2019
If the lateral surface of a cylinder is 94.2 cm2 and its height is 5 cm surface-area-volume , class-9-maths	1	1064	April 10, 2019
A soft drink is available in two packs a tin can with a rectangular base of length 5 cm surface-area-volume , class-9-maths	1	748	April 10, 2019
The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm surface-area-volume , class-9-maths	1	1881	April 10, 2019
The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm surface-area-volume , class-9-maths	1	1630	April 10, 2019
A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour surface-area-volume , class-9-maths	1	1540	April 10, 2019
In the given figure, if ∠AOB = 90° and ∠ABC = 30°, then find the measure of ∠CAO class-9-maths	1	3414	April 10, 2019
Shanti Sweets Stall was placing an order for making cardboard boxes for packing class-9-maths	1	2169	April 10, 2019
A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled class-9-maths	1	987	April 10, 2019
If the bisectors of the base angles of a triangle enclose an angle of 135° class-9-maths	1	2416	April 10, 2019
(i) Evaluate the probability that the students participated in celebration class-9-maths	1	1637	April 10, 2019