Triangles & Quadrilaterals

all equal sides

2 equal sides

at least 2 equal sides

0 equal sides

at least 2 equal sides

all equal sides

0 equal sides

2 equal sides

at least 2 equal sides

0 equal sides

3 equal sides

2 equal sides

1 obtuse angle

2 obtuse angles

3 obtuse angles

at least 2 obtuse angles

1 acute angle

2 acute angles

3 acute angles

0 acute angles

3 right angles

2 right angles

at least 2 right angles

1 right angle

Scalene

Equilateral

Right

Acute

Obtuse, Isosceles Triangle

Obtuse, Equilateral Triangle

Obtuse, Scalene Triangle

Obtuse, Acute, Scalene Triangle

3

4

5

6

Parallelogram because it has 2 pairs of parallel sides.

Trapezoid because it has no parallel sides.

Trapezoid because it has 1 pair of parallel sides.

Rectangle because it has 4 right angles and parallel sides.