First divide bot sides of the formula by 1/2(3.14):-
2A / 3.14 = r^2
r = sqrt (2A/3.14)
The fraction 12/16 has the same .75 value as the fraction 3/4
1/3 is 0.3333333 and you round it by the 3rd three, so it looks like 0.334
Answer:
0.6
Step-by-step explanation: