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Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 42

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 42
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 42
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 82° =
  2. Complement of 49° =
  3. Complement of 63° =
  4. Complement of 24° =
  5. Complement of 62° =
  6. Complement of 57° =
  7. Complement of 45° =
  8. Complement of 6° =
  9. Complement of 48° =
  10. Complement of 39° =
  11. Complement of 22° =
  12. Complement of 53° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 42
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 103° =
  2. Supplement of 132° =
  3. Supplement of 104° =
  4. Supplement of 98° =
  5. Supplement of 39° =
  6. Supplement of 46° =
  7. Supplement of 165° =
  8. Supplement of 20° =
  9. Supplement of 71° =
  10. Supplement of 118° =
  11. Supplement of 43° =
  12. Supplement of 83° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 42
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 38° and 65°. Find the third angle.
  2. A triangle has angles 98° and 46°. Find the third angle.
  3. A triangle has angles 67° and 48°. Find the third angle.
  4. A triangle has angles 94° and 37°. Find the third angle.
  5. A triangle has angles 50° and 73°. Find the third angle.
  6. A triangle has angles 40° and 29°. Find the third angle.
  7. A triangle has angles 36° and 49°. Find the third angle.
  8. A triangle has angles 21° and 52°. 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.