I get proofs, but I cannot figure out this one question. "If two isosceles triangles are constructed on the same base, prove that the line joining the two vertices forms two congruent triangles." If someone could help it would be amazing!

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)