Question

Draw the given angles using a protractor Then, bisect the angles using a ruler and a pair of compasses. a) 50° b) 70 c) 120 d) 55​

Answer 1

Steps of construction

Step I - Draw a ray OA as shown in figure

Step II - With the help of a protractor construct an angle AOB measure 70o

Step III - With a centre O and a convenient radius draw an arc cutting sides OA and OB  at P and Q respectively.

Step IV - With centre P and radius more than half PQ , draw an arc.

Step V - With centre Q and the same radius, as in the previous step ,draw another arc intersecting the arc drawn in the previous step at R .

Step VI - Join OR and produce it to form ray OX .

The angle AOX and angle BOX so formed are equal