How do you find the perimeter of a triangle whose coordinates are X(0,2), Y(4,-1), Z(-2,-1)?

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Dominic Paul · Accepted Answer

You can use Pythagorus&#039; Theorem (            a      2        +          b      2        =          c      2      ) to find the lengths of the sides.Therefore the length of side XY is                                          (            4            -            0            )                    2                +                              (                          (              -              1              )                        -            2            )                    2                      =                            4          2                +                              (            -            3            )                    2                      =                  16        +        9              =          25        =    5  Side YZ:                                          (                          (              -              2              )                        -            4            )                    2                +                              (                          (              -              1              )                        -                          (              -              1              )                        )                    2                      =                                        (            -            6            )                    2                +                  0          2                      =                  36              =    6  Side XZ:                                          (                          (              -              2              )                        -            0            )                    2                +                              (                          (              -              1              )                        -            2            )                    2                      =                                        (            -            2            )                    2                +                              (            -            3            )                    2                      =                  4        +        9              =          13      Perimeter = XY + YZ + XZ =       5    +    6    +          13       =       11    +          13

How do you find the perimeter of a triangle whose coordinates are X(0,2), Y(4,-1), Z(-2,-1)?

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