Lesson: Central Angles and Arcs Mathematics • Third Year of Preparatory School

Students will be able to

• understand that the measure of an arc is equal to the central angle opposite it,
• understand that adjacent arcs are arcs in the same circle with only one point in common,
• calculate the arc length using the measures of arcs or central angles in degrees,
• understand that if the measures of two arcs in the same circle are equal, then so are the arc lengths,
• understand that if the measures of two arcs in the same circle are equal, then their chords are equal in length and vice versa,
• find missing angles in a circle in degrees using measures of arcs,
• form and solve linear equations using measures of arcs in circles.