Answer:
20°
Step-by-step explanation:
The answer would be choice C.
Perpendicular lines cross each other and form a right angle as you can see marked in the third picture.
On his first turn he moves one fifth of one hundred what is equal to twenty on second turn he moves twenty less one fourth of twenty what is equal to fifteen. In last time he moves eleven fourths of twenty what is equal to fifty five. Then 3rd turn he has moved ninety spaces
i hope this helps :)
