I heard an interesting political analogy the other day, and it caused me to reflect on the many discussions and varying interests within…
Category: Department
06.10.2023
FeedBack
Gannet’s Observatory Great article about the U of Oregon observatory in Eugene and especially the work of Samuel Gannett. While sadly the observatory…
06.10.2023
Test Yourself 87: Beside Yourself
Find the area of triangle ABC in terms of its sides only, and without using Heron’s formula. For the solution to this problem…
04.16.2023
Test Yourself 86: Another Missing Part
Given the angles shown, what is angle BDC? The solution can be found HERE
12.04.2022
Test Yourself 85: Areas, again
In parallelogram ABCD area BCQ contains 77,554 square feet and area XQA contains 36,307 square feet. What is area CDXQ?. The solution to…
09.24.2022
Test Yourself 84: A Circles Circus
There are six areas in the drawing below: the quarter-circle, the semi-circle, the full circle, the deltoid triangle x-B-y, the circular triangle y-C-z,…
09.24.2022
FeedBack
Stay In Your Lane Thanks to Wendy Lathrop for her always insightful contributions through her Vantage Point column. This month’s issue (July/August 2022)…
07.11.2022
Test Yourself 83: Everything’s Right
All of the circles are inscribed in right triangles. What is the value of R? For the solution to this problem, please click…
05.15.2022
Test Yourself 82: Three Chords in a Circle
Chord PR is on the bisector of chords PT and PS. What is the radius of the circle?. For the solution to this…
03.13.2022
GLO Record of the Week: Chesapeake and Ohio Canal Historical Park
This week’s record is of the Chesapeake and Ohio National Historical Park. This specific survey was accepted on Jan. 22, 2003, and depicts…
