Angles Lesson and Practice

Angles Lesson and Practice

Adjacent Angles

• are "next to" each other

• share a common vertex

• share a common side

Multiple Choice

These two angles are adjacent to each other. Calculate the missing measurement.

• 85 degrees

• 90 degrees

• 25 degrees

• 45 degrees

Multiple Choice

These two angles are adjacent to each other. What is the measure of angle A?

• 45^o

• 160^o

• 30^o

• 35^o

Complementary Angles

• 2 angles whose sum is 90 degree

Multiple Choice

What is an example of a pair of complementary angles?

• 13° and 45°
• 10° and 170°
• 81° and 9°
• 90° and 3°

Multiple Choice

These two angles are complementary since they show the right angle symbol. Find the missing angle.

• 43

• 47

• 57

• 67

Supplementary Angles

• 2 angles whose sum is 180 degrees

• 2 angles that form a straight line

Multiple Choice

2 angles are supplementary. One angle measures 48 degrees. What is the measure of the other angle?

• 42

• 52

• 142

• 132

Vertical Angles

• vertical angles are across from each other

• vertical angles are always equal to each other

Multiple Choice

Are these vertical angles?

• yes

• no

Multiple Choice

Are these vertical angles (yes/no)

• yes

• no

Multiple Choice

Are these Vertical Angles?

• yes

• no

Multiple Choice

What is the measure of the missing angle

• 47

• 133

• 180

Multiple Choice

Since these two angles form a right angle which is 90 degrees. Use the equation 5x +25 + x + 5=90 and solve for x by combining like terms

• 5

• 90

• 25

• 10

Multiple Choice

What is the value of "x"?

Since the two angles total 180 degrees, we can write and solve the equation 3x + 123 =180

• 19

• 20

• 21

• 22

Multiple Choice

Since these are vertical angles and they are equal, use the equation 6x + 20 = 140 and solve for x

• 6

• 140

• 20

• 90

Multiple Choice

Write an equation and find the value of x

• 6x + 12 + 3x - 3= 90

  x = 9

• 6x +12 + 3x -3 = 180

  x = 55

• 6x +12 +3x -3 = 180

  x =19

Multiple Choice

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25
• Complementary; x=5
• Supplementary; x=25
• Supplementary; x=5

Multiple Choice

Write an equation and Solve for x

• 12x + 25 = 85 x=5

• 12x + 25 + 85 = 180

  x=10

• 12x + 25 + 85 = 90

  x =25

• 85