Kubad

Ka Wikipedia
U bood: gooshitaan, raadi

Kubad waa joomateri oo ay xaddido masaaxad ay dhammaan baraheedu u jiraan fogaan isl’eg bar cayiman ah oo loo yaqaan barta dhexe oo aan lahayn wax xagal ah.

Kubad

Bedka xaddidan:

A = 4 \pi r^2 \,

Mugga:

V = \frac{4 \pi r^3}{3}
Kubad la dhex-dhigay Dhululubo.

Qaacidada

Habka Kubadda
Wareeg U \, = \, 2 \pi r { \color{OliveGreen} \ = \frac{\mathrm dA_\mathrm{PF}}{\mathrm dr} }
Baaxad A_O  \, = \, 4 \pi r^2  \, { \color{OliveGreen} \ = \frac{\mathrm dV}{\mathrm dr} }
Mug V \, = \, \frac{4}{3} \pi r^3 = \int_0^r A_O \mathrm dr
Bedka Goobada A_\mathrm{PF} \, = \, \pi r^2 = \int_0^r U \mathrm dr
Mugga Kubadda V_\mathrm{KS} \, = \, \frac{h^2 \pi}{3} (3r - h)
Meelaha ay ka daboolantahay A_\mathrm{KK} \, = \, 2 r h \pi = 2 r^2 \pi \left(1-\cos\frac{\alpha}{2}\right)
Waqtiga ay negaato J \, = \, \frac{2}{5} mr^2