- There are acute, obtuse, reflex angles as well as right angles and angles on straight lines and around a point.
- Sum of angles inside a triangle is 180 and inside a quad is 360.
- Sum of interior angles in a polygon with n sides is 180(n-2).
- Sum of exterior angles in any polygon is always 360.
- Regular polygons have equal sides, equal interior/exterior angles.
- When parallel lines are crossed there are 4 equal acute angles and 4 equal obtuse angels at the points of intersection.
- Corresponding angles are equal and form a F shape together.
- Alternate angles are equal and form a z shape together.
- Opposite angles are equal and form an x shape together
- Bearings are measured clockwise from the north of the centre point.
Comments
No comments have yet been made