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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 85

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 85
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 85
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 85° =
  2. Complement of 48° =
  3. Complement of 44° =
  4. Complement of 22° =
  5. Complement of 47° =
  6. Complement of 71° =
  7. Complement of 32° =
  8. Complement of 75° =
  9. Complement of 14° =
  10. Complement of 8° =
  11. Complement of 79° =
  12. Complement of 45° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 85
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 147° =
  2. Supplement of 149° =
  3. Supplement of 58° =
  4. Supplement of 76° =
  5. Supplement of 168° =
  6. Supplement of 13° =
  7. Supplement of 41° =
  8. Supplement of 159° =
  9. Supplement of 83° =
  10. Supplement of 11° =
  11. Supplement of 53° =
  12. Supplement of 65° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 85
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 93° and 49°. Find the third angle.
  2. A triangle has angles 36° and 59°. Find the third angle.
  3. A triangle has angles 25° and 114°. Find the third angle.
  4. A triangle has angles 74° and 30°. Find the third angle.
  5. A triangle has angles 63° and 54°. Find the third angle.
  6. A triangle has angles 23° and 115°. Find the third angle.
  7. A triangle has angles 22° and 84°. Find the third angle.
  8. A triangle has angles 21° and 31°. 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.