The answer is Diaphragm its located underneath your lungs.
Oh wow that long I’ll get back to you if I have an answer when I finish reading
They are not likely to compete for the same mate.
If one of the outer corners of an isosceles triangle is 115 degrees, then the internal angle is 180-115 = 65 degrees.
The task has 2 solutions.
Let the angle at the vertex is 65 degrees. Then the angles at the base are (180-65): 2 = 57.5 degrees.
Let the angle at the base be 65 degrees, then another angle at the base is 60 degrees. The vertex angle is 180- (65 + 65) = 50 degrees.