2. WARM UP Grab a Unit 10 Packet from front Complete page 2 10 minutes End

3. SURFACE AREA AND VOLUME UNIT 10

4. ESSENTIAL QUESTIONS Why is it important to calculate surface area & volume of 3D solids? What sorts of real-world situations require knowledge of surface area and volume?

5. BONUS QUESTION You are cleaning all the windows in your house with window cleaner and a roll of paper towel. When you start, the paper towel roll is 8 inches wide. After you clean the windows, your paper towel roll is only 3 inches wide. How much surface area did you lose? (A paper towel roll is 1 foot tall)

6. TODAY’S OBJECTIVE Students will be able to find the surface area of prisms and cylinders

7. 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. FACE EDGE VERTEX

8. PRISMS Definition: A Prism is a polyhedron with exactly two congruent, parallel faces, called bases. Lateral Faces – faces that are not the bases. Altitude – height of prism ( to both bases) Lateral Area – sum of the areas of the lateral faces Surface Area – sum of lateral area AND areas of bases

9. EXAMPLES OF PRISMS

10. PRISM FORMULAS

11. EX 1: FIND THE LATERAL AND SURFACE AREAS LA = SA =

12. EX 2: FIND THE LATERAL AND SURFACE AREA LA = SA =

13. EX 3: FIND THE LATERAL AND SURFACE AREAS LA = SA =

14. CYLINDER: Definition: A Cylinder is a prism with circular bases Formulas:

15. EXAMPLE 4: FIND LATERAL AND SURFACE AREAS LA = SA =

16. EX 5: FIND THE LATERAL AND SURFACE AREAS LA = SA =

17. CLASSWORK Arrange desks in groups As a group, complete the right side of page 2 of Unit 10 packet Be prepared to have your work displayed on doc cam!

18. HOMEWORK 1.Complete page 2 of Unit 10 packet