1 Collega correttamente ogni poligono al suo nome.
2 Completa le definizioni con i termini corretti, scegliendoli dall’elenco. Poi numera i disegni come le rispettive definizioni.
RIGHT • EQUILATERAL • SCALENE • ACUTE • ISOSCELES • OBTUSE
1. An ..................................................................... triangle has got two equal sides.
2. An ..................................................................... triangle has got three equal sides.
3. A ........................................................................ triangle has got no equal sides.
4. In an ................................................................ triangle all the angles are less than 90°.
5. In a ................................................................... triangle one angle is 90°.
6. In an ................................................................ triangle one angle is more than 90° and less than 180°.