There are two main parts related to an angle - the arms and the vertex. Arms of the Angle The two rays which join at a common point to form the angle are called the arms of the angle. Observe the figure given below which shows that OA

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2. Supplementary angles are two angles whose measures have a sum of ____. Complementary angles are two angles whose measures have a sum of ____. 3. Use the figure below to name an

As we know that an angle is the coming together of two rays at one common point. The two rays are known as the arms and the common point is known as the vertex. Here, in this article, we

Two angles are Complementary when they add up to 90 degrees (a Right Angle ) These two angles (40° and 50°) are Complementary Angles, because they add up to 90°: Notice that