Question

a building cast a 235 ft shadow along the ground. the angle of the sun's ray with the ground is 24 degrees. How tall is the building?

Answer 1

The height of the building, H, divided by the length of the shadow, L, equals tangent 24°, or
tan(24°) = H/L
rearranging,
H=L*tan(24°)
=235tan(24°) feet.