大象传媒

Perimedr parc si芒p petryal wedi ei labeli 芒'r rhifau deg a chwech.

Trionglau / Triangles

Mae pedwar math o driongl. Mae gan bob un dri ochr, ac maen nhw鈥檔 bolygonau.

1. Hafalochrog

Mae gan drionglau hafalochrog dri ochr hafal a thair ongl hafal 60掳.

2. Isosgeles

Mae gan drionglau isosgeles ddau ochr hafal a dwy ongl hafal.

3. Ongl sgw芒r

Mewn trionglau ongl sgw芒r mae un o鈥檙 onglau yn ongl sgw芒r (90掳).

4. Anghyfochrog

Does gan drionglau anghyfochrog ddim ochrau hafal nac onglau hafal.

Perimedr parc si芒p petryal wedi ei labeli 芒'r rhifau deg a chwech.

More on Si芒p, safle a symud

Find out more by working through a topic