Answer:
314.16 sq mm
Step-by-step explanation:
formula for area of a circle = pi(r^2)
if the diameter is 20mm then the radius is 10 mm
When you plug in pi(10mm^2) you get 314.16 sq mm
I believe 10% because 390 and 39 are exactly the same numbers almost
Answer:
A=130
Step-by-step explanation ❤️❤️
Answer:
7h=63 so a because she charges $7 per hour and earned a total of $63
Answer:
ok
Step-by-step explanation:
what do u mean by the simplest form?
