a radio station broadcasts a signal over an area with a 77 km radius. What is the area of the region that receives the signal...take pi as 22/7
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Yes, 3125(3.14) = 9812.5 but the directions said you need to round to the nearest square mile so you need to round to the nearest whole number. To round to the nearest whole number, you need to look at the tenths place. If the tenths place is less than 5, round down and if the tenths place is 5 or greater, round up. You must then round 9812.5 to 9813.
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