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anonymous

  • one year ago

Bianca needs to paint a logo made using two right triangles. The dimensions of the logo are shown below. What is the difference between the area of the large triangle and the area of the small triangle?

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @undeadknight26 @unicwaan @vera_ewing @aaronq

  3. anonymous
    • one year ago
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    @Michele_Laino @lυἶცἶ0210

  4. anonymous
    • one year ago
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    ^ Yes your here (::::::

  5. Michele_Laino
    • one year ago
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    the area of the small triangle is: A=(6*2)/2=...

  6. anonymous
    • one year ago
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    12 but what does /2 stand for?

  7. Michele_Laino
    • one year ago
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    since, in general the area of a triangle is: A= (base* height)/2

  8. anonymous
    • one year ago
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    so 6*2 *1/2?

  9. Michele_Laino
    • one year ago
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    yes!

  10. Michele_Laino
    • one year ago
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    what do you get?

  11. anonymous
    • one year ago
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    6

  12. Michele_Laino
    • one year ago
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    correct!

  13. Michele_Laino
    • one year ago
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    similarly, the area of the other triangle is: \[\Large A = \frac{{base \times height}}{2} = \frac{{3 \times 7}}{2} = ...?\]

  14. anonymous
    • one year ago
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    so its 27/2

  15. Michele_Laino
    • one year ago
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    \[\Large A = \frac{{base \times height}}{2} = \frac{{3 \times 7}}{2} = \frac{{21}}{2} = ...?\]

  16. Michele_Laino
    • one year ago
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    what is 21/2=...?

  17. anonymous
    • one year ago
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    10.5

  18. Michele_Laino
    • one year ago
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    correct! so total area is: 6+10.5=...?

  19. anonymous
    • one year ago
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    16.5!! (: Yay

  20. Michele_Laino
    • one year ago
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    :)

  21. anonymous
    • one year ago
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    Its makes so much sense now c: Thank you!

  22. Michele_Laino
    • one year ago
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    :)

  23. Michele_Laino
    • one year ago
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    I'm very sorry the right option is B) since: 10.5-6=4.5 cm^2

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