Question

Question #11e0a

Answer 1

The radius is 68.9 m and the circumference is 433 m.

Explanation:

I am not sure what you mean by 1.49h?
1.49 hectares is equivalent to `0.01 km^2 = 1*10^4 m^2`. I will find radius & circumference of a circle with area of `1.49*10^4 m^2`.

Area = `pi*r^2`
`1.49*10^4 m^2 = pi*r^2`
`r^2 = 1.49 *10^4 m^2/pi = 0.474*10^4 m^2`
`r = 0.689*10^2 m = 68.9 m`

So the circumference is `2*pi*68.9 m = 433 m`

I hope this helps,
Steve