It was called black triangle because the burning coal was blackening the air and it's between three country that meet, Germany, Poland, and Czech Republic
mega triangle
It would be called the midsegment of the triangle. And when you have all the midpoints of the triangle joined, you would get the midsegment triangle. It is one fourth of the area of the actual triangle
The side of a triangle or parallelogram used to help find area is called the base. Area is base times height in a parallelogram. In a triangle, it is 1/2 times base times height.
It is called delta.
A delta?
It makes a great story, but there is little truth in the stories. The area called the Bermuda triangle is not even well defined.
All triangles have a height because the area of any triangle is 0.5*base*perpendicular height
The area is called the Black Hills.
Area of Equilateral Triangle A= S2 * (Root 3)/4, where A= Area of the triangle S= Side of the triangle.
In Europe during 1348-50 and also called black death. The Black Death is estimated to have killed 30% to 60% of Europe's population, reducing the world's population from an estimated 450 million to between 350 and 375 million in 1400
Abrene
The area of triangle is : 1620.0