Rodents & other pests will never get used to the ultrasonic sound waves emitted from this repeller. The Attack Wave effectively protects an area up to 4,000 - 5,000 unobstructed square feet. In a home with rooms, hallways, and furniture the effective range is closer to 2000 square feet.
Definition. of the Centroid of a Triangle. The Centroid is a point of concurrency of the triangle. It is the point where all 3 medians intersect and is often described as the triangle's center of gravity or as the barycent.1  It is formed by the intersection of the medians.he Centroid is a point of concurrency of the triangle. It is the point where all 3 medians intersect and is often described as the triangle's center of gravity or as the barycent. 1  It is formed by the intersection of the medians.
We will also construct the segment DE. Finally, the centroid, the intersection of medians BF and AE (and CD as proposed by this proof) will be G. The triangle is as follows. Note that DE is a midsegment of the triangle, so it is parallel with AC, and is 1/2 the length of AC. So let us consider triangles AGC and EGD.