[Activity] Make your own Protractor

Transcript

[Activity] Make your own Protractor So, our goal is to make a protractor. Let’s look at the steps Draw a circle of a convenient radius on a sheet of paper. Cut out the circle (Fig. 2.13). A circle or one full turn is 360°. Fold the circle to get two equal halves and cut it through the crease to get a semicircle. Write ‘0°’ in the bottom right corner of the semicircle. 3. Fold the semi-circular sheet in half as shown in Fig. 2.15 to form a quarter circle. 5. Continuing with another half fold as shown in Fig. 2.18, we get an angle of measure 6. Unfold and mark the creases as OB, OC, ..., etc., as shown in Fig. 2.19 and Fig. 2.20 4. Fold the sheet again as shown in Figs. 2.16 and 2.17: