Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Find the capacity in litres of a conical vessel with (i) radius 7 cm, slant height 25 cm

Q : 2     Find the capacity in litres of a conical vessel with

            (i) radius 7 cm, slant height 25 cm

Answers (1)

best_answer

Given,

Radius = r =7\ cm

Slant height = l = \sqrt{r^2 + h^2} = 25\ cm

Height = h =\sqrt{l^2-r^2} = \sqrt{25^2-7^2}

= \sqrt{(25-7)(25+7)} = \sqrt{(18)(32)}

= 24\ cm

We know,
Volume of a right circular cone = \frac{1}{3}\pi r^2 h

\therefore Volume of the vessel= \frac{1}{3}\times\frac{22}{7}\times7^2\times24

\\ = 22\times7\times8\\ = 154\times8 \\ = 1232\ cm^3

\therefore Required capacity of the vessel = 

= \frac{1232}{1000} = 1.232\ litres

Posted by

HARSH KANKARIA

View full answer

Similar Questions

Trending Articles/News

anam-khan

Board Exam Date 2025 Live: Bihar Class 10, 12 model papers out, time table soon; updates on CBSE, UP

Latest Question