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Finding Surface Area of Prisms

Finding Surface Area of Prisms. Rectangular Prisms and Cubes Picture the net of each figure. Surface area is the total area of each side or face of a figure. How many sides does a cube have? How many sides does a rectangular prism have?.

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Finding Surface Area of Prisms

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  1. Finding Surface Area of Prisms Rectangular Prisms and Cubes Picture the net of each figure. Surface area is the total area of each side or face of a figure. How many sides does a cube have? How many sides does a rectangular prism have?

  2. http://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.phphttp://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.php

  3. So, the surface area is 1,674 m2.

  4. How is finding surface area similar to finding area of a polygon? • How can knowing a figure’s net help you find surface area? • Do you have to know the formula to find surface area?

  5. Finding Surface Area of Prisms Triangular Prisms Picture the net of each figure.

  6. http://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.phphttp://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.php

  7. SA= 2B +bh+bh+bh SA = 2(bh÷2) + bh+bh+bh

  8. So, the total surface area of the given solid is 360 cm2. The surface area of the prism is 210 cm2.

  9. Finding Surface Area of Cylinders Cylinders Picture the net of each figure.

  10. http://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.phphttp://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.php

  11. SA = 2B + bh+bh+bh SA = 2(bh ÷ 2) + bh+bh+bh

  12. So, the total surface area is approximately 125.6. So, the surface area of the cylinder is about 180.9 cm2.

  13. Finding Surface Area of Pyramids Square Pyramids and Triangular Pyramids Picture the net of each figure.

  14. http://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.phphttp://www.brainingcamp.com/resources/math/surface-area/surface-area-lesson.php

  15. SA = 2B + Ph SA = 2(1/2ab) + (b + c + d)h SA = ab + (b + c + d)h Square Pyramid: SA= 4(bh÷2) + B

  16. To Find the surface area of a Triangular Pyramid: • SA = 4B or 4(bh÷2) 5 cm 4.2 cm 5 cm SA = 42 cm ²

  17. What to do for a rectangular pyramid: • SA = B + Area of the 4 triangles (the triangles will be different because the base is not a square. Two triangles will be equal and the other two will be equal. SA = (bh) + 2(bh÷2) + 2(bh÷2) SA = (6x2) + 2(6x1.5 ÷2) + 2(2x1.5 ÷2) SA = 12 + 2(4.5) + 2(1.5) SA = 12 + 9 + 3 SA = 24 cm² 6 cm 2 cm 1.5 cm

  18. 5 cm 8 cm 10 cm 8 cm

  19. 11.5 cm 12 cm

  20. 22 cm 14 cm

  21. 13 cm 9 cm 11 cm

  22. 4 cm 5 cm 3 cm 7 cm

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