Enumerate the types of angles that can be found in the unit circle.
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Enumerate the types of angles that can be found in the unit circle.
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Answer:
Types of Angles
1. Acute Angle
2. Right Angle
3. Obtuse Angle
4. Straight Angle
5. Reflex Angle
6. Adjacent Angles
7. Complementary Angles
8. Supplementary Angles
9. Vertical Angles
Step-by-step explanation:
1. Acute Angle - Measures less than
90° 2. Right Angle - Measures exactly 90°
3. Obtuse Angle - Measures greater than 90° but less than 180° 4. Straight Angle - Measures exactly
180°
5. Reflex Angle - Measures greater than 180° but less than 360° 6. Adjacent Angles - Angles with a common side and a common vertex.
21 and 22 are adjacent angles.
7. Complementary Angles - Angles
whose measures add to 90°. 41 and
22 are complementary angles.
8. Supplementary Angles - Angles
whose measures add to 180°. 41 and 22 are supplementary angles.
9. Vertical Angles - Angles that have a common vertex and whose sides are formed by the same lines. Vertical angles are equal in measure. 21 and 22 are vertical angles.
What is an angle?
An angle is the shape formed by two rays meeting at a common and point. An angle is represented by the symbol z. The angle below is written as ZAOB.
Parts of an angle
Arms: the two rays joining to form an angle. Below, OA and OB are the arms of ZAOB.
Vertex: the common end point at which the two rays meet to form an angle. Below, the point O is the vertex of ZAOB. Degrees
Degrees are the unit of measurement for angles. A circle is divided into 360 equal degrees, so that a right angle is 90°.