Dhululubo

Dhululubo Waa joomateri ay masaaxad saleedyadiisu yihiin goobo, taa oo masaaxada isku xirta salalku tahay laydi golxo leh Bedka xaddidan

$A=2\pi r^2$ + $2\pi rh$

Dhululubo

Habka loo cabiro

(r) waa dhexroorka salka

(h) waa jooga dhululubada

(A) Waa bedka salka $A=\pi r^2$

(P) Wareega Salka waxaana loo cabiri karaa sidaan $P=2\pi r$

Bedka

• BedKa dhinaca = Wareega Salka × Jooga = $P\times h$
• Bedka Salka Sare = $\pi r^2$
• Bedka Salka Hoose = $\pi r^2$
• Bedka Guud = $(2\times \pi r^2)+(P\times h)$

Mugga

Dhululubo socod waniin

Mugga waxaa lagu helaa:

(V) = $\pi r^{2}h$

Iyadoo la isku dhufto Bedka salka iyo jooga = $A\times h$

Sidoo kale Habkaan

Adigoo sidaan u cabira = $\pi \times \underset{0}{\overset{h}{\int }}[d(x){]}^{2}dx$