text: geometry questions.. please help!? okay so i have two problems which i dont know how to do: use the pythogorem therum to figure out the distance between the two points. 1. e(-2,-1),f(3,11) 2. g(-2,-6),h(6,9)   could you please explain it to me. the pythagorean theorem is c^2 = a^2 + b^2  which means if you drew a straight line between the two points, you would have "c", which is the long side of a right triangle.  "a" and "b" form the sides.  so in your first example, -2 and 3 represent the "width", or horizontal edge, of your triangle.  subtract the smaller value from the larger to get the length:  a = 3 - (-2) a = 5  -1 and 11 represent the "height", or vertical edge:  b = 11 - (-1) b = 12  so your equation is this: c ^ 2 = a ^ 2 + b ^ 2 c ^ 2 = 5 ^ 2 + 12 ^ 2 c ^ 2 = 25    + 144 c ^ 2 = 169 c = 13  so the distance between e and f is 13.