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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 64

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 64
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 64
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 54° =
  2. Complement of 67° =
  3. Complement of 85° =
  4. Complement of 46° =
  5. Complement of 60° =
  6. Complement of 29° =
  7. Complement of 64° =
  8. Complement of 23° =
  9. Complement of 49° =
  10. Complement of 78° =
  11. Complement of 6° =
  12. Complement of 73° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 64
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 120° =
  2. Supplement of 115° =
  3. Supplement of 39° =
  4. Supplement of 113° =
  5. Supplement of 49° =
  6. Supplement of 119° =
  7. Supplement of 44° =
  8. Supplement of 163° =
  9. Supplement of 104° =
  10. Supplement of 67° =
  11. Supplement of 149° =
  12. Supplement of 16° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 64
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 37° and 80°. Find the third angle.
  2. A triangle has angles 59° and 48°. Find the third angle.
  3. A triangle has angles 23° and 26°. Find the third angle.
  4. A triangle has angles 57° and 88°. Find the third angle.
  5. A triangle has angles 47° and 74°. Find the third angle.
  6. A triangle has angles 30° and 61°. Find the third angle.
  7. A triangle has angles 69° and 24°. Find the third angle.
  8. A triangle has angles 45° and 33°. 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.