S K Gupta and Anubhuti Gangal Solutions for Exercise 4: Exercise

Using your protractor draw an angle of measure $36°.$ With this angle as given, draw another angle of measure $72°.$ Verify by measurement.

With compass and a ruler, construct an angle of $135°$

With compass and a ruler, construct an angle of  $150°$

With compass and a ruler, construct an angle of $120°$

Using your protractor, draw an angle $BAC$ of measure $120°$. With this angle as given draw an angle of measure $90°$. Verify by measurement.

Draw a linear pair of angles. Bisect each of the two angles. Verify that these two bisecting rays are perpendicular to each other. [Hint: see figure]

Draw a circle of radius $3.5$ cm

Draw a circle of diameter $8.4\text{ cm}$