Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

what is frustum?
Asked by | 25 Oct, 2009, 02:34: PM
answered-by-expert Expert Answer

In geometry, a frustum is the portion of a solid - normally cone or pyramid, which lies between two parallel planes cutting it.

The volume of a frustum is the difference between the volume of the cone (or other figure) before slicing the apex off, minus the volume of the cone (or other figure) that was sliced off:

where h1 and h2 are the perpendicular heights from the apex to the planes of the smaller and larger base, B1, B2 are the areas of the two bases.

Answered by | 26 Oct, 2009, 09:12: AM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Maths
hemispherical vessel of radius 14 cm is completely filled with sand. When this sand is poured on a flat ground, the pile of sand forms a cone. The height of this conical pile of sand is 7 cm. Then find how much area on the ground the base of the cone occupies.
Asked by sandeepsg9814 | 03 Mar, 2024, 10:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
From each corner of a square sheet of side 8cm, a square of side y cm is cut. The remaining sheet is folded into a cuboid. The minimum possible volume of the cuboid formed is M cubic cm. If y is an integer, then find M.
Asked by vandana | 17 Feb, 2024, 12:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
find the volume and surface area of a sphere of a radius 2.1cm
Asked by skj809563 | 24 Nov, 2023, 09:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
water flows out through a circular pipe whose internal diameter is 4/3 cm at the rate of 0.63m per sec into a cylindrical tank the radius of whose base is 0.2 m by how much will the level of water rise in one hour
question image
Asked by advikanagare29 | 13 Nov, 2023, 09:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Q 16/30 A floor measuring 3m * 2m is to be covered with tiles measuring 30cm * 30 cm. Can we find the number of tiles required to cover the floor and the cost of the tiles at *430 per dozen? a. Yes, the given information is enough to get the answer Ob. No, more information is needed. ↑
Asked by harjinder13100 | 31 Oct, 2023, 05:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
The total surface area of a solid hemisphere of radius 7 cm is
Asked by naveenkumarbana1 | 08 Jan, 2020, 07:38: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
A retangular block 6 cm x 12 cm x 15 cm is cut into exact number of equal cubes. The leas possible number of cubes will be
Asked by | 02 Jan, 2013, 09:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
a metallic sphere with radius 42cm is melted to cast 8000 identicl spheres find the radius of these sphere
Asked by Manisha Vadagave | 18 Dec, 2012, 07:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
the base of the cone with radius 15 cm & slant height = 25cm is hemisphereical find the volume of this solid using 3.14
Asked by Manisha Vadagave | 18 Dec, 2012, 07:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
a cylindrical tank is closedby both end by hemisphere its r=2.1m & the total height is 9.2 how many liter of petrol can it contain
Asked by Manisha Vadagave | 18 Dec, 2012, 07:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×