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12-3 Cylinders and Cones

12-3 Cylinders and Cones. New Shapes!. Cylinder Like a prism, but with circular bases Cone Like a pyramid, but with a circular base. r. h. l. h. r. Re-Write the Formulas for LA, TA, and Volume for a Cylinder and Cone. Cylinder LA = ph Ch 2rh TA = LA + 2B

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12-3 Cylinders and Cones

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  1. 12-3 Cylinders and Cones

  2. New Shapes! • Cylinder • Like a prism, but with circular bases • Cone • Like a pyramid, but with a circular base r h l h r

  3. Re-Write the Formulas for LA, TA, and Volume for a Cylinder and Cone Cylinder LA = ph Ch 2rh TA = LA + 2B LA + 2r2 V = Bh r2h Cone LA = ½pl ½(2r)l rl TA = LA + B LA + r2 V = 1/3Bh 1/3r2h

  4. TOO: Fill in the Chart for a Cylinder r h

  5. TOO: Fill in the Chart for a Cone l h r

  6. Side Note • What shape is the LA of a cylinder? • Rectangle • What shape is the LA of a cone? • Sector h 2r l 2r

  7. Homework • Page 492 #1-8 all, 9-15 odd

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