Answer:
tan x=O/A
X=tan-¹(O/A)
X=tan-¹(10.5/20.1)
X=27.6
x = 132°
Step-by-step explanation:
The figure has parallel bases and is a trapezium
The lower base angle is supplementary to the upper base angle, that is
x + 48° = 180° ( subtract 48° from both sides )
