Test Yourself: Find the Area
Written by Dr. Richard L. Elgin, PS, PE   
Friday, 24 March 2017

A 474Kb PDF of this article as it appeared in the magazine—complete with images—is available by clicking HERE

Find the area of figure ABCD. At B and C, the lines are tangent to the circular curve with arc BC. Arc BC is subtended by an angle of exactly 63° at radius point X.
 
The solution to this problem can be found HERE

Dr. Richard Elgin is semi-retired, working part-time for ArcherElgin Surveying and Engineering, LLC in Rolla, Missouri. He also is an Adjunct Professor of Civil Engineering at Missouri University of Science and Technology. Dick is a practitioner, professor, researcher and author.

A 474Kb PDF of this article as it appeared in the magazine—complete with images—is available by clicking HERE