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Bocsys Bendigedig !

Bocsys Bendigedig !. Perimedr Perffaith. Peimedr yw’r pellter o amgylch siâp. 8cm. Rhaid adio hyd pob ochr. 5cm. 5cm. 8cm. 5cm + 5cm + 8cm + 8cm = 26cm. Perimedr Perffaith. 9 cm. Beth yw perimedr y petryal ?. 7cm. 7cm. 32cm. 9 cm. Arwynebedd Anhygoel.

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Bocsys Bendigedig !

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  1. BocsysBendigedig!

  2. PerimedrPerffaith Peimedryw’rpellter o amgylchsiâp 8cm Rhaidadiohydpobochr 5cm 5cm 8cm 5cm + 5cm + 8cm + 8cm = 26cm

  3. PerimedrPerffaith 9cm Beth ywperimedr y petryal? 7cm 7cm 32cm 9cm

  4. ArwynebeddAnhygoel Arwynebeddyw’rllemaesiâpyneiorchuddio Rhaidlluosihyd x lled y siâp 8cm 5cm 40cm² = 8cm x 5cm

  5. ArwynebeddAnhygoel 12cm Beth ywarwynebedd y petryal? 8cm lled hyd 96cm² = 8cm 12cm x

  6. CyfaintCŵl Cyfaintyw’rlle y tumewn i siâp 20cm Rhaidlluosi hyd x lled x uchder Felly 12cm x 5cm x 20cm = 1200cm³ 12cm 5cm

  7. CyfaintCŵl Beth ywcyfaint y bocs? 960cm³ 10cm x x x 12cm = 8cm Uchder Hyd Lled

  8. CyfaintCŵl Uchder 7cm 15cm Felly 20cm x 7cm x 15cm = 2100cm³ Lled Hyd 20cm

  9. EichTasg Dod o hyd i berimedr ac arwynebedd y bocsys Dod o hyd i berimedr,arwynebedd a chyfaint y bocsys Dod o hyd i berimedr,arwynebedd a chyfaint y bocsys + dewis un bocs a chyfrifosawl un fyddechyngallugosodarsillfarchfarchnad

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