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if  slant height of a cone is changed by 10% while radius remains unchanged then the volume changes by  
Asked by anshuman457biswas | 22 Jul, 2018, 14:55: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space straight r space equals space 3 space cm comma space straight h space equals space 4 space cm space and space l space equals space 5 space cm space for space the space original space cone. Volume space of space cone space equals space 1 third πr squared straight h space equals space 37.71 space cm squared As space radius space will space remain space same space and space l space will space increases space by space 10 percent sign. Increased italic space l space equals space 10 over 100 cross times 5 equals 0.5 l space equals space 5 space plus space 0.5 space equals space 5.5 space cm straight r squared plus straight h squared equals l squared straight h squared equals l squared italic space italic minus space straight r squared equals 5.5 squared minus 3 squared equals 21.25 straight h equals 4.61 space cm Volume space of space this space cone space equals space 1 third πr squared straight h space equals space 43.46 space cm squared Increased space volume space equals space fraction numerator 43.46 minus 37.71 over denominator 37.71 end fraction cross times 100 equals 15.24 percent sign end style
Answered by Sneha shidid | 24 Jul, 2018, 12:02: PM

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CBSE 9 - Maths
the cap of a joker is conical in which 30.8 sq.cm of cloth is used . Also the circumference of its base is 17.6 cm .(i) find the height if the cap. (ii)find the slant height of the cap (iii)find the radius of the base of the cap (iv) what is the volume of the cone ?(leave the answer in pie)
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CBSE 9 - Maths
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CBSE 9 - Maths
find the volume of circuler cone with  1. radius6cm ,height7cm  
Asked by kundankumarshah789 | 31 Dec, 2018, 13:52: PM
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CBSE 9 - Maths
if  slant height of a cone is changed by 10% while radius remains unchanged then the volume changes by  
Asked by anshuman457biswas | 22 Jul, 2018, 14:55: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
If the radius of the base and altitude of a right circular cylinder and a right circular cone are equal. What is the relation between the volumes of a cylinder to that of a cone?
Asked by Topperlearning User | 17 Oct, 2017, 13:14: PM
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CBSE 9 - Maths
If the radius of the cone is doubled, what will be the effect on its volume?
Asked by Topperlearning User | 17 Oct, 2017, 13:25: PM
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CBSE 9 - Maths
An isosceles triangle with a base of 0.4 m and an altitude of 0.3 m is revolved about a line through the vertex and perpendicular to the base. What is the volume of the solid generated by the revolving triangle?
Asked by Topperlearning User | 17 Oct, 2017, 12:53: PM
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CBSE 9 - Maths
The circumference of the base of the cone of height 12 cm is 22 cm. Calculate its volume.
Asked by Topperlearning User | 17 Oct, 2017, 13:17: PM
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CBSE 9 - Maths
The area of the base of a conical toy of height 9 cm is 616 cm2. Calculate its volume.
Asked by Topperlearning User | 17 Oct, 2017, 13:27: PM
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CBSE 9 - Maths
The volume of a right circular cone of base area 13.86 cm2 is 55.44 cm3. Calculate its height.
Asked by Topperlearning User | 17 Oct, 2017, 13:24: PM
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