Estimation A machine drills a hole into a sheet of aluminum. The radius of the hole is exactly 2.43 in. Round the radius to the nearest inch to estimate the area of the hole. Then find the area of the hole using the exact radius. Use 3.14 for a in both calculations. in ? Using the rounded radius, the area of the hole is about (Round to the nearest hundredth as needed.)​

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.