Review question

# Can we show we have three corners of a rectangle? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R5386

## Question

The coordinates of the points $A$, $B$, $C$ are $(-2,1)$, $(2,7)$, $(5,5)$ respectively. Prove that these points form three corners of a rectangle and that $AB=2BC$.

If $D$ is the fourth corner of the rectangle, calculate the distance of $C$ from the diagonal $BD$.