In the given figure, AB is diameter of the circle, C and D lie on the semicircle. ∠ABC = 60° and ∠CAD = 40°, find ∠DCA
1
20°
2
30°
3
25°
4
35°
In the given figure, AB is diameter of the circle, C and D lie on the semicircle. ∠ABC = 60° and ∠CAD = 40°, find ∠DCA