LEARNING OBJECTIVE: Use the knowledge gained last lesson on the angle properties of polygons
SUCCESS CRITERIA: You will be able to solve problems involving: total angles in a polygon, interior angle of a regular polygon and exterior angle of a regular polygon
STARTER:
A1. Four of the angles of a pentagon are 110°, 130° 102° and 97°. Calculate the fifth angle.
Q2. A regular Polygon has an exterior angle of 60°. How many sides does it have?
LESSON: Quick review of polygon properties then have a go at Ex 13B on page 310 and 311 of Higher GCSE Text book – check answers regularly.
EXTENSION Three worksheets on Polygons
PLENARY: Checking answers, checking feedback from students, exam pro question
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