Question

DILICISE 19.2
paw the following angles with the help of a protractor and bisect each :
fi 80°​

Answer 1

Answer:

Steps of construction:

Construct a ray OB

Using the protractor construct ∠AOB of 80°

Considering O as centre and convenient radius construct an arc cutting the sides OA and OB at the points Q and P

Considering Q as centre and radius more than half of the angle PQ, construct an arc

Considering P as the centre and radius more than half of the angle PQ, construct another arc which intersects the previous arc at the point R

Join the points OR and produce it in order to from a ray OX

Therefore, OX is the bisects of the ∠AOB

So the measure of each parts of the bisected angle is ∠AOX=∠BOX=40°