What is 10mm to 2m in ratio?

To find the ratio of 10mm to 2m, we first need to convert both measurements to the same unit. Since 1m is equal to 1000mm, 2m is equal to 2000mm. The ratio of 10mm to 2000mm is 10:2000, which can be simplified to 1:200. So, the ratio of 10mm to 2m is 1:200.