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12.2 Surface Area of Prisms and Cylinders Lateral face Oblique.

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Presentation on theme: "12.2 Surface Area of Prisms and Cylinders Lateral face Oblique."— Presentation transcript:

1 12.2 Surface Area of Prisms and Cylinders Lateral face Oblique

2 Definition of a Prism A Prism is a solid having bases or ends that are parallel, congruent polygons and sides that are parallelograms. http://dictionary.reference.com/browse/prism

3 Parts of a Right Prism Height is the distance between the bases

4 Different Right Prisms All Prisms with a Right angle

5 Definition of an Oblique Prism A prism with angles that are not right angles.

6 A way to show the surface of a Prism A two Dimensional representation of a prism is called a net

7 Right Prism Theorem The Surface Area of a Prism is two bases plus the lateral faces. Lateral faces = Height times Perimeter B is Base P is Perimeter H is Height

8 Right Prism Theorem The Base is 4(7)= 28 Perimeter is 2(4)+2(7) = 22 Height is 5 S.A. = 2(28) + 22(5) S.A. = 166

9 Another way is adding all the faces and bases The equation S.A. = 2(W·H + W·L + H·L) W = 4; L = 7; H = 5

10 Define of a Cylinder A Prism with a circular base

11 The net of a Cylinder Two circles and a Rectangle

12 The Surface Area of a Cylinder 2 Bases + Circumference times height

13 The Surface Area of a Cylinder 2 Bases + Circumference times height

14 The Surface Area of a Cylinder 2 Bases + Circumference times height

15 Homework Page 732 – 734 # 13 – 43 odd, 49, 53

16 Homework Page 732 – 734 # 14 – 44 even, 48, 55


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