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12.3b Surface Area of Pyramids and Cones. State Standards. Lesson Goals. Find the surface area of a cone. 8 , 9: Solve problems involving the surface area lateral area of geometric solids and COMMIT TO MEMORY THE NECESSARY FORMULAS. altitude. slant height. definitions. Cone
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12.3b Surface Area of Pyramids and Cones State Standards Lesson Goals Find the surface area of a cone. 8, 9: Solve problems involving the surface area lateral area of geometric solids and COMMIT TO MEMORY THE NECESSARY FORMULAS.
altitude slant height definitions • Cone • Base: a circle • Lateral surface: a sector of a circle • Altitude: the perpendicular distance between the vertex and the base.
theorem Surface Area of a Cone
You try Find the surface area. 13 ft 12 ft 5 ft
Today’s Assignment • p. 738: 20 – 25, 27, 36, 44 – 46