None.
A metre is a measure of length or distance while 10base2 is a pure, dimensionless number.
200 meters,
185 meters
For 10Base2, the 10 stands for 10 megabits per second, Base means baseband, and 2 equals 200 meters
10Base2 is also known as Thin Ethernet
The maximum length of a 10Base2 thinwire ethernet cable is 185 ft.
ring
10BASE2, or IEEE 802.3, is an early Ethernet Standard that makes use of industry-standard RG-58 coaxial communications cables connected to BNC T-connectors. 10BASE2 gets its identifier, assigned by the Institute of Electrical and Electronics engineers (IEEE), from the following characteristics: "10" means it has a maximum transmission speed of 10Mbps; "BASE" is shorthand for "Baseband Transmission" or "Baseband Ethernet," meaning that the medium only transmits Ethernet signals; and "2" refers to its maximum network segment length of 185 meters, rounded up to 200 meters.
Terminator
rg6
10Base2 is also known as Thin Ethernet
The requirements for a 10Base2 network: RG58u Coaxial cable T-connectors BNC's Terminators Ground, usually a ground chain Internetworking with Cisco and Microsoft Technologies pg. 226 and 227
Thinnet 10BASE2 cable