Page 1: This lesson starts with a warm up having students calculate the area and circumference of two circles.
Page 2: New Vocabulary is introduced about arcs, central angles, semi-circle and sectors.
Page 3: Students find the area and circumference of a circle and then the arc measure, central angle, arc length and area of a semi-circle. A connection is made between the degrees of a whole circle and its corresponding semi-circle with its area.
Page 4: Students find the arc measure, central angle, arc length and area of two sectors. Lesson concludes with formulas for area of a sector and arc length.
Page 5: 8 practice problems
Pages 6-10: Answer Key
CCSS Math Content HS G-C.B.5