Mo is cutting the grass on the school field. The field is a rectangle 100 m long and 80 m wide. If he cuts 40 m2 of grass per minute, how many minutes will it take him to cut it all? ​

200 minutes.

Step-by-step explanation:

The total area of the field

= 100 * 80

= 8000 m^2.

So time taken to cut the whole field

= 8000/40

=  800/4

= 200 minutes.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice