12.4 Volume of 12.4 Volume of Prisms and Prisms and CylindersCylinders

V = πr2h1253 = πr2(10)

r2 = 39.88

`

V = πr2hV = π(5)2(8)V = 628.32 in3

Large Cylinder

V = π(3)2(7)

V = 197.92 mm3

Small Cylinder

V = π(1)2(7)

V = 21.99 mm3

197.92 – 21.99 = 175.93 mm3

V = l x w x h

V = 11 x 4 x 5

V = 220 m3

V = π(6)2(9)

V = 1017.87 ft3

200π = πr2(8)

r2 = 25 r = 5 d = 1ocm

Sin 60 = h/18h = 15.59

V = π(6)2(15.59)

V = 4x4x4 = 64in

V = ½ π(2)2(4) = 25.13in3

AssignmentAssignmentPractice 12.4Practice 12.4