Answer:
About 45.22
Step-by-step explanation:
Radius x 2 x π
3/8=0.375
2/5=0.4
0.38=0.38
0.375<0.38<0.4
therefore: 3/8,0.38,2/5
*Remember that you can convert fractions to decimals by dividing the numerator by the denominator! This makes it much easier to compare :)
The answer is 17/80
Step by step:
Move decimal 2 to the left,
.2125
Then:
2125
____
10000
Then just simplify from there
X=37/5
or 7.4 in decimal form