Advertisements
Advertisements
प्रश्न
A right angled triangle of which the sides containing he right angle are 6.3 cm and lo cm in length, is made to turn round on the longer side. Find the volume of the solid, thus generated. Also, find its curved surface area.
Advertisements
उत्तर
Given, radius of cone (r) = 6.3cm
Height of cone (h) =10 cm
∴ WKT, Slant height l = `sqrt((6.3)^2+(10)^2)`
=` 11.819 cm [l=sqrt(r^2+h^2)]`
∴ Volume of cone = `1/3pir^2h=1/3xx3.14xx(6.3)^2xx10=4158cm^3`
And CSA of cone=`pirl`
= `22/7xx6.3xx11.819=234.01cm^2`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
