How to Identify and Name Different Types of Angles
An angle is a figure created by two rays, known as the angles' sides, that share a common terminus, known as the angle's vertex. Six types of angles are:
Acute Angle
Obtuse Angle
Right Angle
Straight Angle
Reflex Angle
Complete Angle
Angles created by two rays are located in the plane containing the rays. Angles are also generated when two planes intersect. These are known as dihedral angles.
Questions:
1. Write the name of the angle.
angle
2. According to the image and the angles made by the needles of the watch, which angle do they represent?
watches showing different angles
3. What do you mean by acute angle?
4. Which angle is made by a 90-degree angle?
5. An angle made in the following image shows which angle. Name the angle.
a 55- degree angle
6. What do you mean by obtuse angle?
7. Name the 6 types of angles.
8. Which type of angle is made by the image?
an angle made by the image
9. A 180-degree angle is known as?
10. Write the names of the angles as shown by the image.
different angles
11. What do you mean by right angle?
12. What do you mean by a straight angle?
13. An angle of more than 180-degrees and less than 360- degrees is known as?
14. Write the name of the angles.
different angles
15. What do you understand by reflex angle?
Answer
1. The angle represented by the image is an “acute angle”.
angle
2. The angles represented by the image are:
i. acute angle
ii. right angle
iii. obtuse angle
iv. straight angle
watches showing different angles
3. An acute angle is one that is smaller than 90 degrees in length. This is a smaller angle than the right angle (which is equal to 90 degrees).
4. The right angle is made by a 90-degree angle.
5. The angle made in the following image shows an acute angle.
a 55- degree angle
6. Obtuse angles are those that range between 90 and 180 degrees (90° 180°).
7. The 6 types of angles are:
a. Acute angle
b. Obtuse angle
c. Right angle
d. Straight angle
e. Reflex angle
f. Full rotation (360-degree)
8. An Obtuse angle is made by the image.
an angle made by the image
9. A 180-degree angle is known as a STRAIGHT ANGLE.
10. The names of the angles as shown by the image, are:
a. Right angle
b. Straight angle
c. Acute angle
different angles
11. The angle is called a straight angle if the measure of the angle between two rays is precisely equal to 90 degrees or /2.
12. A straight angle is one that has a length of 180 degrees. It is termed a straight angle because it is a straight line.
13. An angle of more than 180-degrees and less than 360-degrees is known as a reflex angle.
14. The name of the angles are:
a. Acute angle
b. Right angle
c. Obtuse angle
different angles
15. Reflex angles are defined as angles between 180°and 360 degrees.
What do You mean by Naming Angles?
Naming an angle is a fundamental process followed universally to depict an angle created by two intersecting lines or two adjacent sides of a geometric figure. In general terms, we learn How to name an Angle in Four Ways. The ways are:
Naming an angle with three letters
We generally follow an English alphabetical order to name an angle. In this method, a capital letter is assigned to the intersecting point or vertex and the ends of two intersecting lines. For example, ∠ABC represents an angle where B is the vertex.
Reverse naming of angles with three letters
This is the same concept, but the angle is denoted in a reverse way. Here, the vertex remains the same, but the angle is called ∠CBA.
Naming an angle with a letter only
In this method, an angle is named using the letter to denote the vertex only. In the same example, the angle name will be ∠B.
Naming an angle with a number
An angle can also be denoted or named using a number written near the vertex or beside the arc that joins both intersecting lines. For example, ∠1 is an angle where 1 is written beside the arc inside the space between two intersecting lines.
Benefits of Solving Naming Angles Worksheet
The questions set in a worksheet will focus on challenging the students to recognise an angle and name it. The problems will first ask to identify the angle and name it accordingly.
Solving these worksheets will enable students to learn the method of Naming Angles using Three Points. This is the conventional method that students follow worldwide.
Resolving doubts about naming angles will be easy when you have the solution to all these worksheets.
Detect the gaps in the preparation by solving and comparing your answers to the worksheets. Take your preparation for naming angle to the next level easily.
Download the Labeling Angles worksheet PDF
Get the free PDF version of these worksheets and solve them at home. Refer to the solutions given so that you can focus on the answering methods and become better at naming angles.
FAQs on Angles Name Worksheet for Students: Download & Practice
1. What is an acute angle?
An angle less than 90 degrees but greater than 0 degrees is called an acute angle. Example: 45 degrees.
2. What is an obtuse angle?
An angle bigger than 90 degrees and less than 180 degrees is called an obtuse angle.
3. What is a right angle?
An angle that equals 90 degrees is called a right angle.
4. How can I find an angle?
Check where the two lines intersect. Focus on the vertex point and recognise the space between two intersecting lines as an angle.
5. How can I solve the questions given in these worksheets easily?
Focus on what the questions are asking. Use your knowledge related to angles and name the three points. This is how you can easily solve all the questions.
