Angle is a stature formed by two rays. The two rays have a common endpoint which is called the vertex of the angle.
Draw an angle of using a protector.
Step 1: Draw a line BA.
Step 2: Put the protector on the line in such a way that the centre of the protector lays on point B and the zero edge comes on the line segment BA.
Step 3: Start from and mark the point C at .
Step 4: Join BC.
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An angle bisector is the line segment which divides a particular angle into two equal parts. It is also called the line of symmetry of the angle.
Construction of angle bisector (using a ruler and compass)
Draw the angle bisector of .
Step 1: Put the point on O and draw an arc of any radius so that it cut the rays at point A and B.
Step 2: Put the pointer on point A and draw an arc of the radius of more than half of AB.
Step 3: While taking B as the centre. We will draw an arc of the same radius so that it cut the previous arc at point C.
Step 4: Join OC. OC is the required angle bisector of .
There are some angles which we can construct accurately with the help of a compass without using a protector.
Construction of angle.
Step 1: Draw a line m and mark a point C on it.
Step 2: Take C as the centre and draw an arc of any radius to cut the line at point D.
Step 3: While taking D as the centre we need to draw an arc of the same radius to cut the previous arc.
Step 4: Join CE. .