Maths Tricky Tricks

Maths Tip
by Vineel Repaka - Grade 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