Ex: 5² + 12² = 8² 169 64 ≠ is not tangent since it is not perpendicular. Ex: Circle is inscribed in Find the perimeter of the O ΔABC. ΔABC. 10 + 10 + 15+ 15 + 8 + 8 = 66 cm 12.2 Chords and Arcs Chord: A segment whose endpoints are on a circle Ex: The circles are congruent. What can you conclude? Ex: What is the length of ? Ex: What is x? 25 x = 16
Ex: 5² + 12² = 8² 169 ≠ 64 is not tangent since it is not perpendicular. Ex: Circle O is inscribed in ΔABC. Find the perimeter of the ΔABC. 10 + 10 + 15+ 15 + 8 + 8 = 66 cm 12.2 Chords and Arcs Chord: A segment whose endpoints are on a circle Ex: The circles are congruent. What can you conclude? Ex: What is the length of ? Ex: What is x? 25 x = 16
ch_12_teacher_notes.docx