Posted by Anonymous on .
A 13foot ladder is placed against a wall. If the ladder cannot be placed at a slope less than 2.4, what is the minimum height of the wall?
A.5 feet
B.12 feet
C.20 feet
D.13 feet
E.8 feet

math 
Henry,
The 13foot ladder is the hyp. of a rt
triangle.
tanA = m = 2.4,
A = 67.38 deg.
h = 13*sin67.38 = 12 Ft.