Exploring the Angle Addition Postulate

What is the Angle Addition Postulate similar to?

• Line Segment Addition Postulate

• Pythagorean Theorem

• Triangle Inequality Theorem

• Quadratic Formula

If angle ABD is 50 degrees and angle DBC is 30 degrees, what is the measure of angle ABC?

• 80 degrees

• 20 degrees

• 60 degrees

• 100 degrees

Given that angle WCY is 169 degrees and angle WZX is 36 degrees, what is the measure of angle ZCY?

• 169 degrees

• 205 degrees

• 133 degrees

• 36 degrees

If angle EDH is 174 degrees, angle EDI is 31 degrees, and angle IDH is 74 degrees, what is the measure of angle EDI?

• 69 degrees

• 100 degrees

• 31 degrees

• 174 degrees

If angle EDG is 135 degrees and is divided into two angles, 2X and X, what is the value of X?

• 135 degrees

• 90 degrees

• 30 degrees

• 45 degrees

What is the first step in solving for X in the equation 2X + X = 135?

• Combine like terms

• Multiply both sides by 3

• Divide both sides by 2

• Subtract 135 from both sides

If angle VZ is 162 degrees and is divided into three parts: X, 2X, and X-12, what is the value of X?

• 60 degrees

• 30 degrees

• 50 degrees

• 43 degrees

In the equation X + 2X + X - 12 = 162, what is the combined coefficient of X?

• 4

• 3

• 2

• 1

What is the final step in solving for X in the equation 4X - 12 = 162?

• Divide both sides by 4

• Multiply both sides by 4

• Subtract 12 from both sides

• Add 12 to both sides

If you have an angle divided into parts X, 2X, and X-12, and the total angle is 162 degrees, what is the first step to find X?

• Divide 162 by 3

• Combine like terms

• Multiply all terms by 2

• Subtract 12 from 162