Quandaries
and Queries 

Question: Deb 

Hi Deb, I drew a diagram of you lot and added a perpendicular line from C to DA meeting DA at P to see that the lot can be divided into a rectangle APCB and a right triangle DCP.
The rectangular section has area 100 140 = 14 000 square feet. The area of a triangle is half the base times the height so I can calculate the area of the triangle if I can find the length of the base PD. I can find this using Pythagoras' Theorem. (It is really amazing how useful this theorem is.) Pythagoras' Theorem for triangle DCP says
That is
so
Hence the area of the triangle is
Thus the area of your property is
Penny 

