Angle Addition and Angle Bisectors

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°

Find the value of ∠A.

• 25 degrees
• 30  degrees
• 35 degrees
• 90 degrees

Angle JHG measures 161.

• m∠GHK=80.5,

  m∠KHJ=161

• m∠GHK=161,

  m∠KHJ=80.5

• m∠GHK=80.5,

  m∠KHJ=80.5

• m∠GHK=161,

  m∠KHJ=161

Find the value of ∠A.

• 39 degrees
• 49 degrees
• 51 degrees
• 59 degrees

• 5

• 2

• 6

• 13

What does the word BISECT mean?

• To cut something into more than five pieces.
• It is a plane with two sets of wings.
• A shape that has three sides. 
• To cut something into two congruent pieces or in half.