Although the triangles are shown to be right triangles, there’s nothing saying that they are. If it’s an equilateral triangle, then there’s nothing wrong with this diagram.
The four people are drawn as the corners of a square whose sides are 6ft long. (If it were a rhombus, the shortest distance between two of the pairs of people would be less than 6 ft.)
By definition, the angle between adjacent sides of a square is 90 degrees. These are right triangles.
The diagonals would be greater than 6ft, unless feef is an acceptable measurement equal to less than 6 feet
Although the triangles are shown to be right triangles, there’s nothing saying that they are. If it’s an equilateral triangle, then there’s nothing wrong with this diagram.
The four people are drawn as the corners of a square whose sides are 6ft long. (If it were a rhombus, the shortest distance between two of the pairs of people would be less than 6 ft.)
By definition, the angle between adjacent sides of a square is 90 degrees. These are right triangles.
Of course it’s supposed to be a square, but if this were a proof, you couldn’t assume they’re right angles