(MM2G4) Spheres Review Name: ___________________________________ Date: _________ 1. What is the surface area of a sphere with a radius of 5.3 centimeters? 2. Find the total surface area of a sphere with radius 8 inches to the nearest inch. 3. Find the volume of a sphere with radius 5 meters. 4. Find the surface area of a sphere with diameter 14 inches. 5. Find the volume of a sphere with diameter 22 cm. 6. A glass-blower made a glass sphere with radius 0.46 feet. Find the volume of the glass sphere, rounding to the nearest hundredth. 7. A toy ball has a diameter of 12 inches. Find its volume. 8. What is the approximate radius of a sphere with surface area 28π square feet? 9. Find the radius of a sphere with volume 2304π cm3. 10. Find the diameter of a sphere with surface area 576π in2. 11. Find the circumference of a sphere with volume 972π mm3. 12. What is the volume of a hemisphere with a diameter of 7.4 feet? 13. The diameter of a sphere is doubled. a. The surface area has _____ times the original surface area. b. The volume has _____ times the original volume. 14. The surface area of a sphere is 48π in2. If the radius is doubled what is the new surface area? 15. Circle T if the statement is true, or F if the statement is false. a. T or F Doubling the radius of a sphere increases its surface area 2 times. b. T or F Doubling the radius of a sphere increases its volume 8 times. 16. The surface area of a plastic ball is 54 π. A rubber ball has radius twice that of the plastic ball. What is the surface area of the rubber ball? 17. Shannon wants to calculate the volume of the globe in her history teacher’s classroom. The globe is in the shape of a sphere. She measured the circumference of the globe along the equator to be 30 inches. What is the approximate volume of the globe to the nearest inch? 18. Jonathan found the diameter of the globe in his teacher’s classroom to be 16 inches and wanted to calculate the surface area. What should his answer be, to the nearest hundredth?