Room 28
Learning Objectives
Grade E
To be able to calculate using the angles in
parallel lines.
Can you name the three rules we use?
Grade C
To investigate and then remember the rules
for calculating internal and exterior angles in polygons.
If the external angle of a regular polygon
is 72o, how many sides does
it have?
Grade E
Ten Ticks, 5, 3, pages 27-8
MEP 3.4, page 20-24
Grade C
Internal Angles
Ten Ticks, 6, 5, page 28
MEP 3.5, page 26
External Angles
Ten Ticks, 6, 5, page 29
Ten Ticks, 5, 3, pages 27-8
MEP 3.4, page 20-24
Grade C
Internal Angles
Ten Ticks, 6, 5, page 28
MEP 3.5, page 26
External Angles
Ten Ticks, 6, 5, page 29
