Class 4 Maths Angles @kidsknowledgepoint
Understanding Angles in Mathematics In mathematics, an angle is formed when two lines meet at a point. This point is called the vertex , and the lines are called arms . Angles are everywhere around us—like when a door opens, the space between the door and the wall is an angle. Let’s learn more about angles! Types of Angles Right Angle (90 degrees): This angle looks like the corner of a square. A right angle measures exactly 90 degrees. Think of the angle when a book is open perfectly halfway. Acute Angle (Less than 90 degrees): An acute angle is smaller than a right angle. If you slightly open a door, the small gap creates an acute angle. Obtuse Angle (More than 90 degrees but less than 180 degrees): An obtuse angle is bigger than a right angle but not completely straight. When you open a book wide but not flat, the angle you see is obtuse. Straight Angle (180 degrees): A straight angle looks like a straight line. It measures exactly 180 degrees, like when a door is completely open and...