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  • 22-02-2018
  • Mathematics
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Please find the surface area AND SHOW YOUR WORK please tell me what to multiply by like the equations

Please find the surface area AND SHOW YOUR WORK please tell me what to multiply by like the equations class=

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Supernova
Supernova Supernova
  • 05-08-2018

SA of a triangle: 1/2(base * height)

SA of a rectangle: length * width

____________________________________________________________

SA of rectangle: 30 cm * 14 cm = 420 cm²

SA of top and bottom triangles: 2 * 1/2(30 cm * 20 cm) = 600 cm²

SA of side triangles: 2 * 1/2(14 cm * 24 cm) = 336 cm²

Add up all the SAs.

420 + 600 + 336 = 1,356 cm²

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