Question

if the points (12,5), (8,4) and (7,8) are the midpoints of the sides of a triangle. find the vertices.

Answer 1

If P(3, 4), Q(4, 6) and R(5, 7) are the midpoints of AB, BC and CA. Then, Adding (i), (iii) and (v ), we get 2(x1 + x2 + x3) = 6 + 8 + 10 = 24 ⇒ x1 + x2 + x3 = 12 ...(vii ...