Question

30. In ARST (See Fig. 11.54), what is the value of x?
20
exter
140°
20
Fig. 11.54
(a) 40
(b) 90°
(c) 800
(d) 100​

Answer 1

Where is the figure ????

Answer 2

Answer:

100 as 140 is the exterior angle and exterior angle is equal to the sum of the opposite side of the triangle