Geometry

Identifying angles

When two non-parallel rays meet at a point, an angle is formed

Angle is marked with a curved line

Two straight rays meet each other at point B.

B is the vertex of the angle.

 The symbol of the angle is ∠.

We can name it ∠ABC or ∠CBA.

Look at the angles below

∠CDE is the greatest and ∠PQR is the smallest.

Let's try to find angles around us

Take a piece of paper and fold it keeping the ends together

The angle at the corner of a piece of folded paper is a right angle. It is marked as .

We can also use a set-square to check if an angle Is right angle.

We can see right angles around us

We can see acute angles around us

We can see obtuse angles around us