Question

Round answers to the nearest tenth if necessary.

1. the measure of arc JI is ?? degrees

2. the measure of arc IJH is ?? degrees

3. the measure of angle IKH is ?? degrees

Answer 1

• a) mJI = m∠JKI = 125°, same measure as central angle
• b) mIJH = 360° - (180° - 125°) = 305°, same as central angle ∠IJH
• c) m∠IKH = 180° - 125° = 55°, supplementary with ∠JKI