Clinometer

This is a Simple Clinometer that I designed in SW2003 for a 9th grade Math Project in school. Also known as an inclinometer, it is an instrument used to measure elevation or height of an object. I designed this because we are learning about Trigonometric Functions in Right Triangles, and for our project we have to use the formulas we have learned with a clinometer to find the height of an unknown object. Scale up 17x before printing.

From Wikipedia: A forester using a clinometer makes use of basic trigonometry. First the observer measures a straight-line distance D from some observation point O to the object. Then, using the clinometer, the observer measures the angle a between O and the top of the object. Then the observer does the same for the angle b between O and the bottom of the object. Multiplying D by the tangent of a gives the height of the object above the observer, and by the tangent of b the depth of the object below the observer. Adding the two of course gives the total height (H) of the object.