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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 60

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 60
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 60
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 50° =
  2. Complement of 75° =
  3. Complement of 81° =
  4. Complement of 60° =
  5. Complement of 51° =
  6. Complement of 73° =
  7. Complement of 38° =
  8. Complement of 52° =
  9. Complement of 61° =
  10. Complement of 69° =
  11. Complement of 47° =
  12. Complement of 76° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 60
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 165° =
  2. Supplement of 38° =
  3. Supplement of 111° =
  4. Supplement of 157° =
  5. Supplement of 96° =
  6. Supplement of 84° =
  7. Supplement of 28° =
  8. Supplement of 61° =
  9. Supplement of 57° =
  10. Supplement of 101° =
  11. Supplement of 72° =
  12. Supplement of 30° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 60
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 41° and 74°. Find the third angle.
  2. A triangle has angles 44° and 85°. Find the third angle.
  3. A triangle has angles 90° and 57°. Find the third angle.
  4. A triangle has angles 37° and 22°. Find the third angle.
  5. A triangle has angles 86° and 43°. Find the third angle.
  6. A triangle has angles 37° and 101°. Find the third angle.
  7. A triangle has angles 92° and 33°. Find the third angle.
  8. A triangle has angles 42° and 26°. 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.