anonymous
  • anonymous
1.) Find the area of the rhombus. Leave your answer in simplest radical form. http://assets.openstudy.com/updates/attachments/4f8e030ae4b000310fac76d5-michellet22-1334706976360-bnv.png My Answer:
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
|dw:1438367422254:dw|
anonymous
  • anonymous
Is that right?
anonymous
  • anonymous
2.) You are planning to use a ceramic tile design in your new bathroom. The tiles are blue-and-white equilateral triangles. You decide to arrange the blue tiles in a hexagonal shape as shown. If the side of each tile measures 7 centimeters, what will be the exact area of each hexagonal shape? http://assets.openstudy.com/updates/attachments/516c60bfe4b02ec89c5b0a4e-jbluver-1366057178975-l.png My answer: |dw:1438367509485:dw|

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anonymous
  • anonymous
Is that right?
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
alekos
  • alekos
no to the first answer
anonymous
  • anonymous
Really?
anonymous
  • anonymous
how?
alekos
  • alekos
starting with the rhombus we have cos 60 = 6/x where x is the length of the sides of the rhombus so x = 6/cos60 to get the area of this triangle we use A=1/2.6.x.sin60 there are 4 triangles so we have area of rhombus = 4A
alekos
  • alekos
with the second we have the area of one equilateral triangle = (1/2).7.7.sin60 so the area of the hexagon = 6 x area of each triangle
anonymous
  • anonymous
Oh.
alekos
  • alekos
so what do you get for your answers?
alekos
  • alekos
Sorry, your second answer is correct

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