Toobin

Toobin Waa joomateri ay masaaxad saleedkiisu goobo tahay, masaaxada isku xirta salalkuna tahay Toobin

Qaacidadaan waa Toobinta usamaysan Salkeeda sida Goobada

r : Gacanka Salka.

h : Joogga Toobinta.

A : Bedka Salka.

P : Wareega salka.

V : Mugga Toobinta.

g : Dheerer garaaf toobineed ee gooba quman ah.

Bedka dusha sare ee toobin Goobeed quman =

{\frac {gP}{2}}=\pi rP

Bedka salka toobinta =

\pi r^{2}\,

Toobin goobeed quman haddii la gooyo ee barbarra la noqda waxaa ka dhalanaya :

{\frac {a}{A}}={\frac {k^{2}}{h^{2}}}

Halka (a) Waa bedka gabalka la jaray, iyo (k) Fogaanta halka laga jaray madaxa.

Mugga $V$ Jooga toobin $h$ Gacanka Salka $r$ iyo ${1 \over 3}$ Mugga dhulubo. Sidaas daraadeed:

V={\pi \cdot r^{2}\cdot h \over 3}