Question:
With the help of a ruler and a compass it is not possible to construct an angle of
(a) 37.5°
(b) 40°
(c) 22.5°
(d) 67.5°
Solution:
(b) With the help of a ruler and a compass, we can construct the angels, 90°, 60°, 45°, 22.5°, 30° etc., and its bisector of an angle. So, it is not
possible to construct an angle of 40°.