# Trigonometry

posted by
**Ayomide**
.

Directly below a 50m. high cliff is the side of a river. How wide is the river if the angle of depression from the edge of the cliff to the other side of the river is 57.68 degree

posted by
**Ayomide**
.

Directly below a 50m. high cliff is the side of a river. How wide is the river if the angle of depression from the edge of the cliff to the other side of the river is 57.68 degree