(a)[2]
Determine the coordinates of $B$.
(b)[4]
Show that the equation of the perpendicular bisector of $AB$ is $2y + 5x = 74$.
(c)[1]
Find the value of $n$.
(d)[2]
Find the area of the triangle.
Mathematics 0580 · IGCSE · Length and midpoint
Length and midpoint — practice question
$AB$ is a line whose midpoint is $M$. The point $A$ is $(2, 3)$ and the point $M$ is $(12, 7)$.