Step-by-step explanation:
Your question is not well understood
Answer:
535 is the cirrext answer
102.8/4=25.7
I got it because I used a calculator
The first one.
The first one. 7x² times 2x = 14x³
Radius = r
Diameter : D = r*2
Circumference : C = 2πr
π = 3.14 rounded
9.4*2 =18.8
2(3.14)9.4
6.28*9.4= 59.03200
Diameter = 18.8
Circumference = 59.03200
