Question

(0.a What are the missing coordinates of the triangle? (A) (-2b, 0); B) (-c,0); C (0,2b); ( D) (0, -c)

Answer 1

We have a triangle with two congruent sides. The base is divided into two equals parts by the height.

These points are symmetrical. The x-values are at the same distance from the midpoint of the base. So we have x=2b and x = -2b. The y-coordinates remains the same.

Then, the answer is (-2b, 0).