Angles are formed when two lines meet at a point from "summary" of Maths Mate – 6 NEW by Madhubun
When two lines intersect at a common point, they form an angle. The point where the lines meet is known as the vertex of the angle. The size of an angle is measured in degrees using a protractor. Angles can be classified based on their measurements. A right angle measures exactly 90 degrees, forming a perfect L shape. An acute angle is less than 90 degrees, while an obtuse angle is greater than 90 degrees but less than 180 degrees. Angles can also be classified based on their relation to each other. When two angles add up to 90 degrees, they are called complementary angles. On the other hand, when two angles add up to 180 degrees, they are known as supplementary angles. Vertical angles are formed when two lines intersect, and they are opposite each other. These angles are always equal in measure. When two lines are parallel and intersected by a transversal, corresponding angles are formed. These angles are in the same relative position at the intersection of the lines. Alternate angles are formed on opposite sides of the transversal but inside the two lines. These angles are equal in measure. Interior angles are formed inside the parallel lines and on the same side of the transversal. Exterior angles are formed outside the parallel lines and on the same side of the transversal. Understanding the concept of angles formed when two lines meet at a point is crucial in geometry and various mathematical applications. By recognizing different types of angles and their properties, one can solve problems involving angles efficiently. It is essential to practice measuring and identifying angles to develop a strong foundation in geometry. With proper knowledge of angles, one can navigate through geometric problems with ease and precision.
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