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Tuesday, March 13 th

Tuesday, March 13 th. Please take a new warm up template and complete the warm up! . Warm Up. 1 and 2 Find the area of the shape. 6 .2 in. 4 in. 2 in. 4 in. Joke of the Day Basketball Week. Why are basketball players messy eaters? They are always dribbling. Week at a Glance.

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Tuesday, March 13 th

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  1. Tuesday, March 13th Please take a new warm up template and complete the warm up! Warm Up 1 and 2 Find the area of the shape 6.2 in 4 in 2 in 4 in

  2. Joke of the DayBasketball Week Why are basketball players messy eaters? They are always dribbling

  3. Week at a Glance Today: SA and V of Prisms Wednesday: Pi Day! Prism Activity Thursday: SA and V Cylinders Friday: *Progress Reports Cylinder and Prism Activity Monday: Checkpoint Prisms & Cylinders

  4. Binder Clean out Keep everything in the FRONT of your binder (goal sheet, warm ups, syllabus, CRCTS< etc.) Put everything GRADED in your PORTFOLIO Throw everything else away 

  5. Composite Figures Worksheet Due at 2:10 

  6. The surface area of a three-dimensional figure is the sum of the areas of its surfaces. Units squared! To help you see all the surfaces of a three-dimensional figure, you can use a net. A net is the pattern made when the surface of a three-dimensional figure is layed out flat showing each face of the figure. COVER

  7. Rectangular Prisms Rectangular Prisms- have a total of 6 faces. We need to find the area for all 6 faces, and then add them together (remember- some faces will be congruent)

  8. Part 1: Surface Area Using a Net Using a Formula

  9. #1 Try Together! Find the surface area S of the prism. Use a net! Draw a net to help you see each face of the prism. Use the formula A = lw to find the area of each face.

  10. Add the areas of each face. Finding the Areas of each! A: A = 5  2 = 10 B: A = 12  5 = 60 C: A = 12  2 = 24 D: A = 12  5 = 60 E: A = 12  2 = 24 F: A = 5  2 = 10 S = 10 + 60 + 24 + 60 + 24 + 10 = 188 The surface area is 188 in2.

  11. #2 You Try Let’s Label the Rectangles!

  12. You Try #3 Rectangle

  13. Remember! Area of a TRIANGLE is ½ x b x h

  14. You Try #2 Triangular Prism 12 in It has FIVE faces! 5 in 4 in

  15. Surface Area with Formulas

  16. #1 Try Together! SA= 2(lw)+2(wh)+2(lh) SA=_____________+_____________+___________ SA=_____________+_____________+___________ SA=_________

  17. #2 You Try! SA= 2(lw)+2(wh)+2(lh) SA=_____________+_____________+___________ SA=_____________+_____________+___________ SA=_________

  18. Why is finding Surface Area of a cube going to be easier?

  19. Since a cube has 6 faces we can really find the area of just ONE face and then MULTIPLY it by 6!

  20. Cube: Try together! 7 in

  21. 1 face= 7 x 7=49 49 x 6 =

  22. Part 2: Volume

  23. It takes 10, or 5 · 2, centimeter cubes to cover the bottom layer of this rectangular prism. There are 3 layers of 10 cubes each to fill the prism. It takes 30, or 5 · 2 · 3, cubes. Volume is expressed in cubic units, so the volume of the prism is 5 cm · 2 cm · 3 cm = 30 cm3.

  24. VOLUME

  25. To find the volume of any prism, you can use the formula V= Bh. Where B is the area of the base, and h is the prism’s height. • The base of a RECTANGULAR prism is a rectangle so the base is: l x w • To find the volume of a triangular prism, B is the area of the triangular base so the base is: ½ x b x h

  26. FORMULA SHEET a=Bh l x w Rectangular Prism: Cylinder Prism:

  27. #1 Try Together v=Bh B= l x w 13 in. 11 in. 26 in. V = lwh Write the formula. V = 26•11•13 l = 26; w = 11; h = 13 V = 3,718 in3 Multiply.

  28. #2 Try Together v=Bh B= l x w 16 in. 12 in. 29 in. V = lwh Write the formula. V = 29•12•16 l = 29; w = 12; h = 16 V = 5,568 in3 Multiply.

  29. #3 You Try! a=Bh B= l x w A rectangular prism with base length 6 ft, width 5 ft, and height 7 ft

  30. 1 1 __ __ 2 2 V = Bh Write the formula. V = ( •3.9•1.3) •4 B = •3.9•1.3; h = 4. #3 Try Together! a=Bh B= ½ x b x h V = 10.14 m3 Multiply.

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