Multiple Choice
Vectors are used in computer graphics to calculate the length of shadows over flat surfaces. An object represented by a vector a is held over a flat surface inclined at an angle 
, as shown in the figure. 
If a light is shining directly downward, approximate the length of the shadow to two decimal places for the specified values of the vector 
.
A) 19.60
B) 19.90
C) 19.30
D) 0
E) 19.84
Correct Answer:
Verified
Correct Answer:
Verified
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