Maths Tip
by Vineel Repaka - 7

To find the endpoint of a diameter of a circle we have to use a really long formula, but one that I find very easy is the following:
Take:
(2,3) as the endpoint
(5,6)as the midpoint
So we need to find the other endpoint to do that:
1. Find the difference between the midpoint and endpoint(5,6)-(2,3)=(3,3)
2. Now add the difference to the midpoint (5,6)+(3,3)=(8,9)
That's it

Negative Numbers-
(-2,3) as the endpoint
(5,-6)as the midpoint
1. Find the difference between the midpoint and endpoint(5,-6)-(-2,3)=(7,9)
2. Now add the difference to the midpoint (5,-6)+(7,9)=(12,3)
That's It