Answer:
.67 = r
Step-by-step explanation:
The area of a circle is found by
A = pi r^2
1.4 = pi r^2
We can approximate pi by 3.14
1.4 = 3.14 ( r^2)
Divide by 3.14
1.4/ 3.14 = 3.14 r^2/3.14
.445859873 = r^2
Take the square root of each side
sqrt(.445859873) = sqrt(r^2)
.667727394 = r
Rounding to the nearest hundredth
.67 = r
