The formula for the circumference is pi times the diameter.
The circumference is 42 x 3.14.
42 x 3.14 = 131.88mm
The answer would be D.
Hope this helps!
- Juju
The answer is A. This is because 3/4 multiplied by 7/8 is 21/32 which is less than 7/8.
Answer:12
Step-by-step explanation:A=πr2=π·62≈113.09734