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Activity 1: Measure and Record (10 minutes)
Objective(s): At the end of the lesson, the students are expected to:
a. measure the exterior angle and its adjacent interior angles in a polygon; and
b. share their observations made from Table 1 in activity 5.
Materials Needed: Protractor and a drawing of a polygon with pairs of Exterior Angie and
Adjacent Interior Angle, Copy of Table 1. Measures of Exterior Angle and its Adjacent Interior
Angle of a Polygon
Instruction
A. Measure the angles and record on a separate paper following the table format below.