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                                                                    Perimeter of a triangle 

 

It's easy to find the perimeter of a triangle!  Remember, a triangle is a  polygon with 3 sides.

All you need to do is add up the lengths or amounts of each side to find the total sum.

 

                                                                                                                   5 inches

back to home page                              3 inches

    

 

                                                                                                            7 inches

5+3+7=15 inches     So the perimeter is 15 inches.