Properties of geometrical figures
Equilateral Triangles
All 3 sides are equal
All 3 angles are equal, each one 60 degrees
Scalene Triangles
All 3 angles are of different degrees
Parallograms
Has 2 pairs of parallel lines
Opposite angles are equal, summing up to 180 degrees
Isosceles Triangles
2 sides are equal
The 2 base angles are equal
Squares and rectangles
Every angle inside is a right angle, each one 90 degrees
All 4 sides are equal
Rhombuses
Same as parallelograms, except that all 4 sides are equal
Trapezium
There is only 1 pair of parallel lines
The angles along the parallel lines add up to 180 degrees