A tree casts a shadow 4 metre long on the ground, when the angle of elevation of the sun is 45°.find the height of the tree

Answer 1

h/4 = tan45°

Answer 2

Their are two methods to solve this question......
The tree make angle 90 with the ground and elevation angle is 45 therefore by
tan45=height of tree/length of shadow
Height=4. {As tan45=1}