Answer:
Zero Angles.
Acute Angles.
Right Angles.
Obtuse Angles.
Straight Angles.
Reflex Angles.
Complete Angle.
Step-by-step explanation:
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Answer:
Different Types of Angles
Angles are classified based on:
Magnitude
Rotation
Classification of angles based on their magnitude
There are seven types of angles based on their degree measurement. They include:
Zero Angles
Acute Angles
Right Angles
Obtuse Angles
Straight Angles
Reflex Angles
Complete Angle
Zero Angle
A zero angle (0°) is an angle formed when both the angle’s arms are at the same position.
Illustration:
∠ RPQ = 0° (zero angle)
Acute Angle
An acute angle is an angle that is more than 0° but less than 90°. Common examples of acute angles include: 15°, 30°, 45°, 60°, etc.
∠ XYZ is greater than 0° but less than 90° (acute angle)
90 Degree Angle
A 90-degree angle, also known as a right angle, is an angle whose measure is equal to 90° is called a right angle. Right angles are represented by drawing a small square box between the arms of an angle.Illustration:
∠ ABC = 90° (right angle)
There will be a whole article on right triangles in the next section (of Triangles).
Obtuse Angle
An obtuse angle is a type of angle whose degree measurement is more than 90° but less than 180°. Examples of obtuse angles are: 100°, 120°, 140°, 160°, 170°, etc.
∠ PQR is an obtuse angle because it’s less than 180° and greater than 90°.
Straight Angle
As the name suggests, a straight angle is an angle whose measure is equal to 180° (straight line)
Illustration:
∠ XYZ =180° (straight angle)Reflex Angle
Reflex angles are the types of angles whose degree measurement is more than 180° but less than 360°. Common examples of reflex angles are; 200°, 220°, 250°, 300°, 350°, etc.
Illustration:
∠ PQR is greater than 180° but less than 360°
Complete Angle
A complete angle is equal to 360°. 1 revolution is equal to 360°.
Step-by-step explanation:
hope it helps
