Apps

TalentJR apps

How the apps work →
Free · Class 4–7 · 4 worksheets · answer keys · practise online · set 51

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.

💡 Learn it first

📏 The worksheets

🔄 New set of questions

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 51
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 51
Name:Date:Score:    / 12

Find the complement.

  1. Complement of 53° =
  2. Complement of 35° =
  3. Complement of 19° =
  4. Complement of 63° =
  5. Complement of 16° =
  6. Complement of 50° =
  7. Complement of 65° =
  8. Complement of 41° =
  9. Complement of 82° =
  10. Complement of 79° =
  11. Complement of 17° =
  12. Complement of 71° =

Supplementary angles

Class 6–7 · Worksheet 3 · set 51
Name:Date:Score:    / 12

Find the supplement.

  1. Supplement of 89° =
  2. Supplement of 135° =
  3. Supplement of 74° =
  4. Supplement of 62° =
  5. Supplement of 163° =
  6. Supplement of 70° =
  7. Supplement of 69° =
  8. Supplement of 38° =
  9. Supplement of 109° =
  10. Supplement of 134° =
  11. Supplement of 130° =
  12. Supplement of 31° =

Angles of a triangle

Class 6–7 · Worksheet 4 · set 51
Name:Date:Score:    / 8

Find the third angle.

  1. A triangle has angles 86° and 61°. Find the third angle.
  2. A triangle has angles 39° and 89°. Find the third angle.
  3. A triangle has angles 85° and 26°. Find the third angle.
  4. A triangle has angles 23° and 25°. Find the third angle.
  5. A triangle has angles 32° and 68°. Find the third angle.
  6. A triangle has angles 36° and 53°. Find the third angle.
  7. A triangle has angles 55° and 54°. Find the third angle.
  8. A triangle has angles 49° and 20°. Find the third angle.

More worksheets

📐 Area and perimeter worksheet🔷 Shapes worksheet Noun worksheetsPronoun worksheetsArticles worksheetTenses worksheetPrepositions worksheetSubtraction worksheets All worksheets

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.