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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 2

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 2
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 2
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 7° =
  2. Complement of 22° =
  3. Complement of 61° =
  4. Complement of 26° =
  5. Complement of 19° =
  6. Complement of 20° =
  7. Complement of 78° =
  8. Complement of 77° =
  9. Complement of 31° =
  10. Complement of 56° =
  11. Complement of 14° =
  12. Complement of 59° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 2
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 94° =
  2. Supplement of 95° =
  3. Supplement of 15° =
  4. Supplement of 21° =
  5. Supplement of 126° =
  6. Supplement of 23° =
  7. Supplement of 97° =
  8. Supplement of 164° =
  9. Supplement of 169° =
  10. Supplement of 77° =
  11. Supplement of 129° =
  12. Supplement of 159° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 2
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 75° and 59°. Find the third angle.
  2. A triangle has angles 61° and 56°. Find the third angle.
  3. A triangle has angles 82° and 27°. Find the third angle.
  4. A triangle has angles 47° and 32°. Find the third angle.
  5. A triangle has angles 95° and 49°. Find the third angle.
  6. A triangle has angles 37° and 55°. Find the third angle.
  7. A triangle has angles 97° and 47°. Find the third angle.
  8. A triangle has angles 66° and 65°. 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.