Angles and Angle Addition

Calculate m∠ABC.

• 45°

• 60°

• 105°

• 15°

∠DEG and ∠GEF are

• a linear pair

• vertical

• congruent

• complementary

Find the value of x. 

 m∠HGS=(3x+5) °  and  m∠SGF=(21x+3) ° and  m∠HGF=176°

• x = 6

• x = 7

• x = 12

• x = 144

Find the value of x, if

m∠SGF=40 °, m∠HGS= (2x-10) ° and m∠HGF=(4x+8) °

• x = 7

• x = 8

• x = 11

• x = 19

• 50°

• 58°

• 115°

• 226°

∠RSU and ∠UST are

• adjacent angles

• vertical angles

• supplementary angles

• a linear pair

Find the value of ∠A.

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

What is another name for ∠H

• ∠KGH

• ∠LGH

• ∠LHG

• ∠K

∠1 and ∠2 form a linear pair.

If m∠1 = (5x + 9)° and m∠2 = (3x + 11)°, find the measure of each angle.

• m∠1 = 110° and m∠2 = 70°

• m∠1 = 109° and m∠2 = 71°

• m∠1 = 70° and m∠2 = 110°

• m∠1 = 71° and m∠2 = 109°

∠K and ∠L are complementary angles.

If m∠K = (3x + 3)° and m∠L = (10x -- 4)°, find the measure of each angle.

• m∠K = 24° and m∠L = 66°

• m∠K = 66° and m∠L = 24°

• m∠K = 40° and m∠L = 50°

• m∠K = 30° and m∠L = 60°