Given f (x)=
2x and g(x) = x2 + 3. Find f(g(x)).

they are not congruent because

the sides, and noncongruent means “not congruent,” that is, not the same shape. (Shapes that are reflected and rotated and translated copies of each other are congruent shapes.) So we want triangles that look fundamentally different.  But this is just a congruent copy of the triangle we have up above on the left. is the correct answer