16,20,22.

Mathematics
Tutor: None Selected Time limit: 1 Day

May 16th, 2015

16 : - 

r = 7 yd

h = 11.20

V = 574.7

Or

V = 575 yd^3

20 : -

r1 = 3 cm

h1 = 3 cm

V1 = 28.27 cm^3

r2 = 3 cm

h2 = 7 cm

V2 = 197.92 yd^3

V = V1 + V2

    = 28.27 + 197.92

    = 226.2 yd^3

22 : - 

r1 = 1 ft

h1 = 2ft

V1 = 6.28 ft^3

r2 = 1/2 ft

h2 = 1ft

V2 = 0.79 ft^3

V = V1 + V2

   = 6.28 + 0.79

   = 7.07

Or

V = 7.1 ft^3

May 16th, 2015

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