NLC - Grade 7 (Lesson 9)

What types of angles are a pair of angles that together make a right angle?

• Supplementary angles

• Complementary angles

• Straight angles

• Linear pair

In Diagram 1, ∠DBC = 20°. Find the size of ∠ ABD.

• 340⁰

• 160⁰

• 70⁰

• 20⁰

In diagram 2, find the value of x.

• 10⁰

• 70⁰

• 100⁰

• 170⁰

Based on the diagram, what type of angle is ∠EHG?

• Acute angle

• Obtuse angle

• Straight angle

• Reflex angle

In Diagram 3, find the value of 𝑥 and the size of ∠KOM and ∠JOM.

• x = 15

  ∠KOM = 80⁰

  ∠JOM = 100⁰

• x = 20

  ∠KOM = 80⁰

  ∠JOM = 100⁰

• x =x = 15

  ∠KOM = 80⁰

  ∠JOM = 105⁰

• x = 15

  ∠KOM = 95⁰

  ∠JOM = 100⁰

What types of angles are a pair of angles that together make a straight angle?

• Adjacent angles

• Complementary angles

• Supplementary angles

• Right angles

In Diagram 4, ∠SQR = 65°. Find the size of ∠PQS.

• 25⁰

• 105⁰

• 115⁰

• 355⁰

In Diagram 5, find the value of x.

• 36⁰

• 72⁰

• 108⁰

• 144⁰

Based on the figure what type of angle is ∠VZW?

• Straight angle

• Obtuse angle

• Right angle

• Acute angle

In Diagram 6, find the size of each of the four angles.

• ∠AOC and ∠BOD

  = 104⁰

  ∠AOB and ∠COD

  = 76⁰

• ∠AOC and ∠BOD

  = 76⁰

  ∠AOB and ∠COD

  = 104⁰

• ∠AOC and ∠BOD

  = 66⁰

  ∠AOB and ∠COD

  = 114⁰

• ∠AOC and ∠BOD

  = 114⁰

  ∠AOB and ∠COD

  = 66⁰