Question

To find the distance between (-2,-3) and (4,1), Peggy's teacher drew a diagram and marked blue lines to represent the legs of a right triangle. Peggy then used 4² and 6² to find the distance represented by the red segment. What distance did she find?

20
√114
25
√52

Answer 1

lets say that the unknown distance is x so:

x²=4²+6²

x²=16+36

x²=52

x=√52