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What are the types of Angles

Sagot :

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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. ∠1 and ∠2 are adjacent angles.
  7. Complementary Angles - Angles whose measures add to 90°. ∠1 and ∠2 are complementary angles.
  8. Supplementary Angles - Angles whose measures add to 180°. ∠1 and ∠2 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. ∠1 and ∠2 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 ∠. The angle below is written as ∠AOB.

        Parts of an angle

   Arms: the two rays joining to form an angle. Below, OA and OB are the arms of ∠AOB.

   Vertex: the common end point at which the two rays meet to form an angle. Below, the point O is the vertex of ∠AOB.

        Degrees

Degrees are the unit of measurement for angles. A circle is divided into 360 equal degrees, so that a right angle is 90°.

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