Answer:
C. 5.1 mm
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan alpha = opposite/ adjacent
tan alpha = j/h
tan 65 = 11/h
Multiply both sides by h
h tan 65 = 11/h *h
h tan 65 = 11
Divide each side by tan 65
h tan 65 / tan 65 = 11 / tan 65
h = 11 / tan 65
h =5.12938424
To the nearest tenth
h = 5.1
