Straight Angles

Find the value of x

• -5

• 28

• 19

• -3

If an angle measures 180 degrees, what type of angle is it?

• Obtuse

• Acute

• Straight

• Right

Which type of angle is pictured?

• Acute

• Right

• Obtuse

• Straight

What is the measure of the missing angle?

• 39

• 129

• 119

• 129

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

• Complementary; x=3.4

• Complementary; x=45

• Supplementary; x=20

• Supplementary; x=175

Work out the size of the missing angle

• 35

• 65

• 115

• 118

Work out the size of the missing angle

• 50

• 70

• 100

• 130

Solve for x.

Mathematical Equivalence

ON

Find the value of

x = (a)  

and the angle on the LEFT is equal to​ (b)  

• -5

• 28

• -3

• 19

• 126

• 54

2. Find X

• 9

• 27

• 45