Answer:
Step-by-step explanation:
I think u have to multiply the radius and diameter. umm if i am correct the ans is 34396.95. or i think u have to divide. if u divide, the ans is 28.31. if i am incorrect let me know pls. and sry i cant help with no.3. thats difficult.
hope my ans is right. if ans is correct pls mark as brainliest ans.
Answer:
it will 7.5×10^3 hope it helps
