Which equation can be used to find the perimeter of a regular decagon with sides of length 5 m?
P = 10 + 5
P = 10 5
P = 2(5) + 2(10)
P = 10(5)
P = 10 + 5
P = 10 5
P = 2(5) + 2(10)
P = 10(5)