The sun rises at 6am; At noon the sun is directly overhead. The height of a pole is 8m tall. What is the length of the shadow at 11am?
the sun rises 90° in 6 hours.
That's 15°/hr
So, at 11 am the angle of elevation of the sun is 75°
If the shadow's length is s, then
s/8 = cot75°