It usually works to use the formula for the area of a trapezoid.
A = (1/2)×(b₁ +b₂)×h
where b₁ and b₂ are the lengths of the parallel bases, and h is the height (the perpendicular distance between the bases)
_____
This is one of several area formulas it pays to memorize.
Answer:
x = 4°
Step-by-step explanation:
all angles in a triangle sum up to 180°
6x + 38° + 5x + 8° + 90° = 180 °
11x +136° = 180°
11x = 44°
x = 4°
Your answer would be 9/27 but can be converted to 1/3. Hope this helps