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Cyfaint Prism

Cyfaint Prism. Beth yw Prism?. Prism yw unrhyw siap sydd a trawsdoriad unffurf (uniform cross-section). Sut mae darganfod cyfaint prism?. Cyfaint y prism yw arwynebedd y trawsdoriad x hyd. Ciwboid. Cyfaint = hyd x lled x uchder. hyd. Arwynebedd = lled x uchder.

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Cyfaint Prism

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  1. Cyfaint Prism

  2. Beth yw Prism? Prism yw unrhyw siap sydd a trawsdoriad unffurf (uniform cross-section).

  3. Sut mae darganfod cyfaint prism? Cyfaint y prism yw arwynebedd y trawsdoriad x hyd Ciwboid Cyfaint = hyd x lled x uchder hyd Arwynebedd = lled x uchder

  4. ee.1 Darganfyddwch cyfaint y siap canlynol 8cm Cyfaint = hyd x lled x uchder = 8 x 6 x 3 = 144cm3 6cm 3cm

  5. Prism Trionglog Cyfaint = uchder sail hyd

  6. ee.2 Darganfyddwch cyfaint y prism trionglog hyn Cyfaint = (sail x uchder) x hyd 2 = (14 x 8) x 5 2 8m = 112 x 5 2 14m 5m = 56 x 5 = 280m3

  7. Cyfaint Silindr Cyfaint =  x r2 x hyd radiws hyd

  8. ee.3 Beth yw cyfaint y silindr canlynol? Cyfaint =  x r2 x hyd = 3.14 x 52 x 12 = 3.14 x 5 x 5 x 12 = 942 cm3 5cm 12cm

  9. Ymarfer – Darganfyddwch cyfaint y canlynol 2 1 14cm 7cm 10cm 4cm 8cm 4 25m 3 5.7cm 17m 6.3cm 4.3cm 13m

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