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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 59

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 59
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 59
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 53° =
  2. Complement of 22° =
  3. Complement of 48° =
  4. Complement of 65° =
  5. Complement of 8° =
  6. Complement of 15° =
  7. Complement of 43° =
  8. Complement of 58° =
  9. Complement of 70° =
  10. Complement of 10° =
  11. Complement of 44° =
  12. Complement of 82° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 59
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 36° =
  2. Supplement of 135° =
  3. Supplement of 104° =
  4. Supplement of 102° =
  5. Supplement of 149° =
  6. Supplement of 98° =
  7. Supplement of 56° =
  8. Supplement of 170° =
  9. Supplement of 141° =
  10. Supplement of 114° =
  11. Supplement of 119° =
  12. Supplement of 84° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 59
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 91° and 54°. Find the third angle.
  2. A triangle has angles 85° and 26°. Find the third angle.
  3. A triangle has angles 22° and 70°. Find the third angle.
  4. A triangle has angles 52° and 36°. Find the third angle.
  5. A triangle has angles 98° and 46°. Find the third angle.
  6. A triangle has angles 83° and 29°. Find the third angle.
  7. A triangle has angles 39° and 20°. Find the third angle.
  8. A triangle has angles 56° and 36°. 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.