10-4B Surface Area of Cylinders

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Presentation transcript:

10-4B Surface Area of Cylinders Geometry

10-4B Surface Area of Cylinders Cylinders - A solid with congruent bases that lie in parallel planes. Lateral area of a cylinder is the area of its curved surface. LA = 2πrh

Surface Area of Right Cylinder S.A. = 2B + Ch or SA = 2B + LA or S.A. = B = Area of Base C = Circumference of base h = ht of cylinder r = radius of a base

Ex. 1 Find the lateral area & surface area of the right cylinder. Give your answers in terms of 16 in. 10 in Ex, ex. 3

Ex. 1 Find the lateral area & surface area of the right cylinder. Give your answers in terms of B. ) a cylinder with circumference 24 cm & a height equal to half the radius.

Ex. 2 Find the surface area of the composite figure. Ex. Ex. 4

Ex. 3 The edge length of the cube is tripled. Describe the effect on the surface area. 8 cm Chkpt ex. After ex. 4

Lateral area of a cylinder Is the area of its curved surface. L.A. =