Types and Measurement of Angles for Grade 5
Section 1: Fill in the Blanks
1. An angle that measures exactly 180° is called a ___________ angle.
2. An angle that is greater than 90° but less than 180° is known as an ___________ angle.
3. The instrument used to measure angles is a ___________.
4. An angle measuring less than 90° is called an ___________ angle.
5. An angle that measures greater than 180° is called a ___________ angle.
Section 2: Multiple Choice Questions (MCQs)
1. What type of angle measures exactly 90°?
(a) Acute Angle
(b) Obtuse Angle
(c) Right Angle
(d) Straight Angle
2. An angle of 35° is an example of a(n):
(a) Right Angle
(b) Acute Angle
(c) Obtuse Angle
(d) Reflex Angle
3. Which of the following angle measures represents an obtuse angle?
(a) 89°
(b) 180°
(c) 90°
(d) 125°
4. The hands of a clock at 6:00 form a:
(a) Straight Angle
(b) Right Angle
(c) Acute Angle
(d) Complete Angle
5. A 240° angle is classified as a:
(a) Acute Angle
(b) Obtuse Angle
(c) Straight Angle
(d) Reflex Angle
Section 3: Classify the Angles
Instructions: Write the type of angle for each measurement given below (Acute, Obtuse, Right, Straight, or Reflex).
1. 78°: ___________________
2. 150°: ___________________
3. 90°: ___________________
4. 180°: ___________________
5. 205°: ___________________
6. 12°: ___________________
7. 91°: ___________________
8. 300°: ___________________
Section 4: True or False
1. Two acute angles always add up to an obtuse angle.
Answer: ____________
2. An angle of 179° is a reflex angle.
Answer: ____________
3. A straight angle is formed by two right angles.
Answer: ____________
4. The corner of a square is a right angle.
Answer: ____________
5. All obtuse angles are greater than a straight angle.
Answer: ____________
Section 5: Match the Columns
Instructions: Match the angle type in Column A with its correct description in Column B.
Section 6: Short Answer Questions
1. If an angle is half the size of a right angle, what is its measure in degrees? What type of angle is it?
2. An angle measures 15° more than a right angle. What is its measure and what type of angle is it?
3. Name two capital letters of the English alphabet that contain a right angle.
4. What is the sum of a right angle and a straight angle?
Answer Key
Section 1: Fill in the Blanks
1. Straight
2. Obtuse
3. Protractor
4. Acute
5. Reflex
Section 2: Multiple Choice Questions (MCQs)
1. (c) Right Angle
2. (b) Acute Angle
3. (d) 125°
4. (a) Straight Angle
5. (d) Reflex Angle
Section 3: Classify the Angles
1. 78°: Acute
2. 150°: Obtuse
3. 90°: Right
4. 180°: Straight
5. 205°: Reflex
6. 12°: Acute
7. 91°: Obtuse
8. 300°: Reflex
Section 4: True or False
1. False
2. False
3. True
4. True
5. False
Section 5: Match the Columns
1. -> (d)
2. -> (e)
3. -> (a)
4. -> (b)
5. -> (c)
Section 6: Short Answer Questions
1. Measure: 45°. Type: Acute Angle.
2. Measure: 105° (90° + 15°). Type: Obtuse Angle.
3. (Examples) E, F, H, L, T.
4. 270° (90° + 180°).
Class 5 Maths Angles Worksheet – Practice Classifying and Measuring
With this Class 5 Maths worksheet on classifying and measuring angles, students sharpen their ability to recognize types of angles like acute, obtuse, and right angles. The engaging activities help children confidently use a protractor and gain real-world measuring skills. Parents see their child’s subject knowledge grow as they practice classifying angles and identifying them in everyday objects, one of the most searched math skills in this topic.
Encourage Everyday Mathematical Thinking
This worksheet encourages Class 5 learners to explore the Topic of angles through fun, hands-on questions in Maths. By practicing with actual angle measurement scenarios, students connect what they learn to sports, art, and science. Parents appreciate activities that include keywords like “types of angles” and “using a protractor,” as these build confidence while ensuring understanding of important Subject concepts for future classes.
FAQs on Class 5 Maths: How to Classify and Measure Angles
1. What are the classification of angles Class 5?
In Class 5 Maths, angles are primarily classified into four types based on their measurement:
- Acute Angle: Less than 90°
- Right Angle: Exactly 90°
- Obtuse Angle: Between 90° and 180°
- Straight Angle: Exactly 180°
2. How do you classify and measure angles?
To classify and measure angles in geometry for Class 5:
- Check the degree measure using a protractor.
- Categorise the angle as acute (less than 90°), right (90°), obtuse (greater than 90° but less than 180°), or straight (180°).
- Record the measurement and mark the correct angle type.
3. How do you measure angles Class 5?
To measure angles in Class 5 Maths, students use a protractor:
- Place the protractor's center point on the angle's vertex.
- Align one arm of the angle with the zero line of the protractor.
- Read the number on the protractor where the other arm points.
4. What are the classification of angles according to their measurement?
Angles are classified by their degree size:
- Acute angle: Less than 90°
- Right angle: Exactly 90°
- Obtuse angle: Between 90° and 180°
- Straight angle: Exactly 180°
5. How can you identify types of angles?
You can identify types of angles by visually estimating or measuring the opening and comparing the angle to standard measures:
- If it looks less than a square corner, it's an acute angle.
- If it forms a perfect square corner, it's a right angle.
- If it opens wider than a right angle but does not form a straight line, it's an obtuse angle.
- If it forms a straight line, it's a straight angle.
6. What is an example of an acute, right, obtuse, and straight angle?
Examples of different angle types include:
- Acute Angle: 45°
- Right Angle: 90°
- Obtuse Angle: 120°
- Straight Angle: 180°
7. How can I use this worksheet at home?
This worksheet can be printed out and used for homework practice, revision, or as a holiday activity. It helps Class 5 students reinforce their understanding of angle classification and measurement through clear instructions, engaging diagrams, and answer keys for self-assessment.
8. Does this include an answer key?
Yes, this worksheet comes with a complete answer key that lists the correct classification and measurements for all angle questions. This allows parents and students to easily check their work and understand any mistakes.
9. Is this worksheet printable?
Yes, the worksheet is available as a free printable PDF, making it easy for students and parents to access, print, and use for Class 5 Maths practice at home or school.
10. What skills are built by this activity?
This worksheet helps develop key skills for Class 5 students, such as:
- Angle identification and classification (acute, right, obtuse, straight)
- Protractor measurement accuracy
- Geometry recognition and maths fluency
- Visual-spatial and analytical skills
11. Can I use this worksheet digitally on a tablet?
Yes, you can use the worksheet PDF on a tablet by marking answers using a stylus or annotation app, making it convenient for students to practice angle concepts without printing.
12. What age group is it best for?
This Class 5 Maths angle worksheet is specifically designed for students aged 9–11 years, matching the Grade 5 syllabus and learning standards.
13. Can I modify or combine this with other worksheets?
Yes, teachers and parents can freely combine this worksheet with other geometry or angle activities to provide more practice and create customised revision sets for Class 5 students.
