<span>Every point went up 4 units and left 3 units. </span><span>Point X on the triangle moved up 4 and left 3.
That formed a right triangle with legs 4 and 3.
The distance point X moved to point X', d, is the hypotenuse of the right triangle. </span><span>Using the Pythagoras Theorem </span><span><span>3^2</span>+<span>4^2</span>=<span>d^2 d = 5
