PLS I NEED HELP A circular field is set into a square with an 800 m side length. Estimate the field's area.

A square where the vertical distance is labeled 800 meters.

About 5,000 m2
About 50,000 m2
About 500,000 m2
About 5,000,000 m2
About 50,000,000 m2

c = 500,000

This is 6 digit number with 5 zero's.

We just multiply the radius ^2 by pi

D = 800m  R = 400

R^2 = 400 x 400 = 160000

A = 160000π = 502654.824574

We estimate from 160000 and just count the 0's on multiplication as long as the 10's don't change in that estimation.

we can show the workings as the counting loops under the 6 and 0's of 160000. = 5 units+ 1.

= 500,000 m^2

    1 [- - - - -} = 500000