Wednesday April 18.

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12.2 Surface Area of Prisms & Cylinders

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Presentation transcript:

Wednesday April 18

Unit 10 – Surface Area and Volume Th, 12/13 10-3 SA of Prisms & Cylinders F, 12/14 10-4 SA of Pyramids & Cones M, 12/17 10-5 Volume of Prisms & Cylinders & 10-6 Volume of Pyramids & Cones -- Quiz T, 12/18 10-7 SA & Volume of Spheres W, 12/19 Composite Figures Th, 12/20 Open Notes TEST!!

10-1 Space Figures and Nets and Definitions for 10-3 Net – a 2-dimensional pattern that can be folded into a 3-dimensional figure

10-3 Definitions Polyhedron – a 3-D figure whose surfaces are polygons (flat) Each polygon is called a FACE. An EGDE is where 2 faces meet. A VERTEX is where 3 or more edges meet.

Prism – a polyhedron with 2 parallel faces called bases. Lateral Faces – faces that are not the bases. Altitude – height of prism ( to both bases) Lateral Area – sum of the lateral faces Surface Area – sum of lateral area AND areas of bases

Ex 1: Find the lateral Area LA = sum of areas of rectangles OR LA = ph (perimeter of base*height of prism)

Ex 2: Find the surface Area SA = LA + 2B (lateral area + 2Area of Base)

Ex 3: Find the Lateral Area

Ex 4: Find the Surface Area

Ex 5: Find the Lateral Area

Ex 6: Surface Area

Cylinder : Like a prism, but has circular bases Ex 7: Lateral Area

Ex 8: Surface Area

Ex 9: Lateral Area

Ex 10: Surface Area

Homework : Worksheet