The answer would be B. the square root of 5 is 2.2360679775 which is the smallest number.
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.
9. Wrong name for this angle: <2
10. Wrong name for this angle: <3
All the numbers are tilted at a 90 degree angle, except for the number 4 which it tilted at an angle of 89 degrees, hoped this helps
