Angles_acute_obtuse_and_reflex
An angle smaller than a right angle is called an acute angle, an angle greater than right angle but less then straight angle is obtuse angle while a reflex angle is larger then a straight angle. I this chapter we will also learn how to categorize triangles based on the angles that it has.
One complete revolution is divided into 360 equal parts. Each part is a degree, and angles are measured in degrees. A right angle is 90 degrees and a straight angle is 180 degrees. In this topic we will learn how to measure angles in degrees. We will also learn how to use a protractor and to solve for unknown angles.
Triangles are of various types, they can be scalene/isosceles/equilateral or acute angled/obtuse angled/right angled triangle in nature. In this topic we will learnt how to categorize and recognize these different types of triangles.
Rectangle, parallelogram, square, rhombus, trapezium all are different types of Quadrilaterals. In this topic we will look more closely at quadrilaterals and will understand how to differentiate between it's various forms.
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