Measuring and Constructing Angles

A point where two or more lines meet, a corner. HINT: You use this to name an angle!

• Parallel lines
• a vertex
• vertical lines
• transversal

What is the arrow pointing to in the angle?

• a ray

• geometry

• vertex

• line

Define Right Angle

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Right, acute, or obtuse?

• Acute
• Right
• Obtuse

What is the measurement of a straight angle?

• 100
• 180
• 360
• 240

Angles that have a measure less than 90 degrees are called _____ ______.

• acute angles
• obtuse angles
• right angles
• straight angles

Find the value of ∠A.

• 79 degrees
• 87 degrees
• 90 degrees
• 97 degrees

• m∠GHK=26, m∠KHJ=26
• m∠GHK=26, m∠KHJ=52
• m∠GHK=52, m∠KHJ=52
• m∠GHK=52, m∠KHJ=26

Find the value of ∠A.

• 25°
• 30°
• 35°
• 90°

Find m∠ABC

• 45^o
• 60^o
• 105^o
• 15^o