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CCSS Algebra 8 – Volume - Spheres Name _________________________________ Date __________ Period ________ Wksht 5 Volume of Spheres Find the volume for each figure. Give your answers in terms of π or round decimals to the nearest ten-thousandth. ______________1. 1m ______________3. 16 yd ______________5. A = 49π cm² ______________7. 10 in. ______________2. 21 in. ______________4. 18 cm ______________6. A = 81π in² ______________8. 11 in. 9. Sarah is blowing up spherical balloons for her brother’s birthday party. One of the balloons has a radius of 3 inches. Give your answers as decimals rounded to the nearest ten-thousandth. a. What is the volume of each balloon? b. Suppose Sarah can inflate the balloon at a rate of 200 cubic inches per minute. How long will it take her to inflate the balloon?