10.2 Review Worksheet (continued)
10.2.5 Spheres Find each measurement. Give your answers in terms of π . 45. the volume of the sphere
46. the volume of the hemisphere
18 cm
7 ft
47. the diameter of a sphere with volume 7776 π in 3
48. The size of a cultured pearl is typically indicated by its diameter in mm. How many times as great is the volume of the 9 mm pearl as the volume of the 6 mm pearl?
6 mm
9 mm
Find each measurement. Give your answers in terms of π . 49. the surface area of the sphere
50. the surface area of the sphere
A = 81 π in 2
21 in.
51. the volume of a sphere with surface area 625 π m 2
225
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