Answer:
the awnser is 2
Step-by-step explanation:
Angle 10 is 140 degrees
Angle 2 = Angle 10 = 140 degrees (Vertically Opposite Angles)
Angle 5 + Angle 4 = Angle 2 (Corresponding Angles)
Angle 5 + Angle 4 = 140
90 + Angle 4 = 140 (Angle 5 is 90 degrees because c is perpendicular to d)
Angle 4 = 50
The answer is 4.5 units (or the last option in the multiple choice bubbles)
The is because the formula for the area of an triangle is A=(b•h)/2
My work for your question