The Angle Addition Postulate

Find the value of ∠A.

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

• x = 6°

• x = 7°

• x = 12°

• x = 144°

∠1 and ∠2 are supplementary.

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°

Tags

CCSS.7.G.B.5

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°

• x = 49

• x = 9.4 

• x = 11

• x = 8.3

If < ABC= 103⁰, find m< ABD

• 45
• 13
• 57
• 46

If m∠ABC = 103° find x.

Tags

CCSS.7.G.B.5

Given m∠QST = 135°,

What equation would you use to find x?

• 3x + 1 + 2x - 6 = 135

• 3x + 1 = 2x - 6

• 3x + 1 + 135 = 2x - 6

• 2x - 6 = 135

Tags

CCSS.7.G.B.5

Find m∠EFG

• 37°

• 18°

• 56°

• 19°

Tags

CCSS.7.G.B.5

What equation would you use to find x?

• 21x - 5 + 10x - 3 = 147

• 21x - 5 + 147 = 10x -3

• 21x - 5 = 10x - 3

• 21x - 5 = 10x - 3 + 147

Tags

CCSS.7.G.B.5