Question

The endpoints of one side of a regular pentagon or -1, four and two, three what is the perimeter of the Pentagon

Answer 1

Explanation:

`(-1,4),(2,3)\\ \\ s^2=(-1-2)^2+(4-3)^2\\ \\ s^2=9+1\\ \\ s^2=10\\ \\ s=√(10)\\ \\ p=5s\\ \\ p=5√(10)\ exact\\ \\ p\approx 15.8`