Each side is about 290mm long
Answer:
C≈6.28mm
Step-by-step explanation:
C=2πr
= 2·π·1≈6.28319mm
Answer:

Step-by-step explanation:
You have to subtract 2 1/2 from 6 and that will equal 3 and 1/2.
Hello,
Radius= √((4-0)²+(5-0)²)=√41
Equation of the circle : x²+y²=41
28 times 1/7 would give you 4