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TGAU Mathemateg Datrys Problemau Siâp a Mesur Haen Uwch

TGAU Mathemateg Datrys Problemau Siâp a Mesur Haen Uwch. Mae cwmni angen cynhwysydd sydd yn giwboid gydag arwynebedd sylfaenol 1m² i dal 6000 litr o dŵr . a) Darganfyddwch uchder y ciwboid

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TGAU Mathemateg Datrys Problemau Siâp a Mesur Haen Uwch

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  1. TGAU Mathemateg DatrysProblemau Siâp a Mesur HaenUwch

  2. Mae cwmniangencynhwysyddsyddyngiwboidgydagarwynebeddsylfaenol 1m² idal 6000 litr o dŵr. a) Darganfyddwchuchder y ciwboid b) Mae’rcwmniangencynhwysyddsyddynsffêr ac syddyndaltraeano’rdŵr. Beth ywradiws y cynhwysyddhwn? Help llaw • Darganfyddwchgyfaint y dŵr. • (a) Defnyddiwch y fformiwlaargyfercyfaint y cynhwysyddiddarganfoduchder y cynhwysydd. • (b) Defnyddiwch y fformiwlaargyfercyfaintsffêriddarganfodradiws y sffêr.

  3. Ateb (a) Cyfaint y dwr 1 litr = 1 000cm³ 6,000 litr = 6,000,000 cm³ Arwynebedd y Sylfaen 1m = 100cm 1m²= 100cm x 100cm 1m² = 10,000cm² Cyfaint = Arwynebedd y Sylfaen x Uchder 6,000,000 = 10,000 x uchder 6,000,000 ÷ 10,000 = uchder 600cm = Uchder 100 cm = 1 m Uchder = 6m

  4. Ateb b) Cyfaint y sffêr 6,000 ÷ 3 = 2,000 litr 2,000 litr = 2,000,000 cm³ Newidtestun y fformiwlaiddarganfod y radiws 78.16 cm = r

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