1.why can’t a triangle be congruent to a quadrilateral ?

2.why can’t an isosceles triangle be congruent to a triangle that is not isosceles ?

i did it but my math teacher said it was wrong.

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.