Angle Addition Postulate

Calculate m∠ABC.

• 45°

• 60°

• 105°

• 15°

Calculate m∠DEF.

• 180°

• 60°

• 120°

• 80°

• x = 6°

• x = 7°

• x = 12°

• x = 144°

• x = 5°

• x = 11°

• x = 33°

• x = 55°

• 50°

• 58°

• 115°

• 226°

If m∠RST = (12x -1)°, m∠RSU = (9x -15)°,

and m∠UST = 53°, find each measure.

• x = 13

  m∠RST = 155°

  m∠RSU = 102°

• x = 3

  m∠RST = 35°

  m∠RSU = 12°

• x = 22

  m∠RST = 263°

  m∠RSU = 183°

• x = 8

  m∠RST = 95°

  m∠RSU = 57°

Find the value of ∠A.

• 25 degrees

• 30  degrees

• 35 degrees

• 90 degrees

What is another name for ∠H

• ∠KGH

• ∠LGH

• ∠LHG

• ∠K