1 / 5

TGAU Mathemateg Datrys Problemau Siap a Mesur Haen Uwch

TGAU Mathemateg Datrys Problemau Siap a Mesur Haen Uwch. O wybod fod yr ongl ABC yn hafal i 120°, cyfrifwch arwynebedd y paralelogram BCEF. 8cm. B. C. 120. 3cm. Help Llaw. A. D. Darganfyddwch arwynebedd y paralelogram bach ABCD. Ydy’r holl fesuriadau gennych chi?

atara
Download Presentation

TGAU Mathemateg Datrys Problemau Siap a Mesur Haen Uwch

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TGAU Mathemateg DatrysProblemau Siap a Mesur HaenUwch

  2. O wybodfod yr ongl ABC ynhafali 120°, cyfrifwcharwynebedd y paralelogram BCEF. 8cm B C 120 3cm Help Llaw A D • Darganfyddwcharwynebedd y paralelogrambach ABCD. • Ydy’rhollfesuriadaugennych chi? • Sutfedrwch chi ddarganfod y mesuriadaucoll? 3cm 3cm F E 8cm

  3. Ateb 8cm 120 3cm FformiwlaArwynebeddParalelogramyw : sail x uchderperependicwlar Mae angendarganfod yr uchderperpendiciwlartrwyddefnyddiotrigonometreg

  4. Ateb Mae’rongl BCD = 180° - 120° = 60° (rheolonglaumewnparalelogram) c h Sin (ongl) = hydyrochrcyferbyn hyd yr hypotenws

  5. Ateb 8cm B C 120 3cm A D 3cm ArwynebeddParalelogram Bach = sail x uchderperependicwlar = 8 x 2.6 = 20.8cm² 3cm ArwynebeddParalelogramMawr = 3 x paralelogrambach F E 8cm = 3 x 20.8 = 62.4cm²

More Related