Question

R=3см, R=1,5см=15мм R=2см​

Answer 1

Ответ:

R=3см=30мм

R=2см=20мм

Answer 2

It seems like you've provided some values for the radius (R) in centimeters and millimeters. Here are the conversions for the values you've given:

1. R = 3 cm = 30 mm (since 1 cm = 10 mm)
2. R = 1.5 cm = 15 mm
3. R = 2 cm = 20 mm

So, R in millimeters is 30 mm, 15 mm, and 20 mm for the respective values in centimeters. If you have any specific questions or need further assistance, please feel free to ask!