Question

Construct an angle of ${130}^0$ using protractor.

Answer 1

Step-$1$Draw a line segment $OA$

Step$2$Place the mid-point of the protractor at point $O$.

Step-$3$On $OA$ from the right start counting from $0^{\circ }$ in the ascending order mark a point $B$ using a sharp pencil at the point showing ${130}^{\circ }$ on the semi-circular edge of the protractor.

Step-$4$Remove the protractor and join $OB$.

Result: $\angle AOB={130}^{\circ }$ is the required angle.