Direction on their definition, is a triangle 1. EUACT NGAELRIT whose angles are all acute. 2. HIGTR NGAELRIT a right angle. is a triangle with 3. QENARALUQEUI NGAELRIT is a triangle with all angles congruent. 4. BOSETU NGAELRIT is a triangle with an obtuse angle. 5. CALENES NGAELRIT is a triangle with no equal sides. 6. SELECSOSI NGAELRIT is a triangle with two equal sides. 7. IUQERALLATE NGAELRIT is a triangle with all sides congruent. 8. NGÀERT is a polygon having three sides. Can be classified according to angles and sides. 9. IRDAUQRALLATE is a four-sided polygon.