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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 44

Angles worksheets — types of angles and angle sums

Free angles worksheets for Class 4 to 7: name the type of angle (acute, right, obtuse, straight, reflex), complementary, supplementary and triangle angles — with answers.

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Types of angles (Class 4–5)Complementary angles (Class 6–7)Supplementary angles (Class 6–7)Angles of a triangle (Class 6–7)

Types of angles

Class 4–5 · Worksheet 1 · set 44
Name:Date:Score:    / 8

Name the type of the marked angle: acute, right, obtuse, straight or reflex.

  1. Type of angle?
  2. Type of angle?
  3. Type of angle?
  4. Type of angle?
  5. Type of angle?
  6. Type of angle?
  7. Type of angle?
  8. Type of angle?

Complementary angles

Class 6–7 · Worksheet 2 · set 44
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 32° =
  2. Complement of 6° =
  3. Complement of 25° =
  4. Complement of 66° =
  5. Complement of 53° =
  6. Complement of 37° =
  7. Complement of 31° =
  8. Complement of 29° =
  9. Complement of 68° =
  10. Complement of 62° =
  11. Complement of 11° =
  12. Complement of 70° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 44
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 44° =
  2. Supplement of 64° =
  3. Supplement of 19° =
  4. Supplement of 67° =
  5. Supplement of 70° =
  6. Supplement of 61° =
  7. Supplement of 166° =
  8. Supplement of 160° =
  9. Supplement of 145° =
  10. Supplement of 136° =
  11. Supplement of 131° =
  12. Supplement of 124° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 44
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 31° and 61°. Find the third angle.
  2. A triangle has angles 33° and 85°. Find the third angle.
  3. A triangle has angles 77° and 36°. Find the third angle.
  4. A triangle has angles 78° and 29°. Find the third angle.
  5. A triangle has angles 54° and 31°. Find the third angle.
  6. A triangle has angles 50° and 68°. Find the third angle.
  7. A triangle has angles 99° and 38°. Find the third angle.
  8. A triangle has angles 77° and 59°. Find the third angle.

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Questions

What are the 5 types of angles?

Acute (less than 90°), right (90°), obtuse (90°–180°), straight (180°) and reflex (180°–360°).

Are these worksheets free?

Yes — print them or save as PDF free. Every worksheet has an answer key.

How do I get different questions?

Press “🔄 New set” — the questions change (maths numbers are new every time; English sentences are shuffled).

How do I print only one worksheet?

Press “🖨️ Print” on that worksheet. Tick “with answer key” if you want the answers on a second page.

Can my child do this worksheet online, like a quiz?

Yes — press “▶️ Practise online” on any worksheet. The questions come one at a time with instant marking, a score at the end and a review of mistakes. No sign-in is needed.