We'll get started on that as soon as you reveal the drawing that shows what 'D' is.
Chat with our AI personalities
acute
It is a solid angle, or an angle in 3-d space.
D is the vertex.
An acute angle is an angle of a shape under 90 degrees, an angle over 90 degrees is called an obtuse angle. hope this helps!:D
If the base of the elevation is at a distance d from the observer, then the highest point is at a height = d*tan(angle of elevation)