Joomatari: bed iyo mug
Habka
Xisaabi bedka laydi, goobo iyo saddex-xagal ama mugga sanduuq, dhululubo iyo kubbad. Dhammaan cabbirrada geli mitir. Natiijadu waa m², m³ ama mitir oo wareegga ah.
Tusaale
Laydi 3 × 4 m wuxuu leeyahay bed 12 m² iyo wareeg 14 m. Sanduuq 3 × 4 × 5 m wuxuu leeyahay mug 60 m³. Dhululubo raadiye 2 m iyo joog 3 m leh muggeedu waa 12π ≈ 37.70 m³.
Xaddidaadaha
Bed: laydi dherer×ballac, goobo πr², saddex-xagal sal×joog toosan/2. Mug: sanduuq dherer×ballac×joog, dhululubo πr²h, kubbad 4πr³/3. Wareegga goobadu waa 2πr. Kuma jiraan agab dheeraad ah ama qiimeyn adkaysi dhisme. Sal iyo joog keliya ma bixiyaan wareegga saddex-xagalka. Mar kale xisaabi marka xaaladdu is beddesho.