| A | B |
|---|
| a right triangle is also a ..... | acute triangle |
| a triangle with a side bigger than 90. | obtuse triangle |
| each angle of equilateral triangles | 60 degrees |
| pairs of parallel sides in a parallelogram | 2 |
| pairs of parallel sides in a rhombus | 1 |
| perpendicular lines | cross at 90 degree angles |
| parallel lines | never cross |
| intersecting lines | cross at various angles |
| a circle contains | 360 degrees |
| a straight angle contains | 180 degrees |
