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anonymous

  • one year ago

help!

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  1. anonymous
    • one year ago
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    with?

  2. anonymous
    • one year ago
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    How many unique triangles can be made when one angle measures 90° and another angle is half that measure? 1 2 More than 2 None

  3. anonymous
    • one year ago
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    ok thx :)

  4. anonymous
    • one year ago
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    Judith is digging for sandstone at a geological site. She has 160 meters of rope and 4 stakes to mark off a rectangular area. Which set of dimensions will create a rectangle using all the rope Judith has with her? 16 m × 10 m 80 m × 80 m 65 m × 10 m 70 m × 10 m

  5. anonymous
    • one year ago
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    @Icedragon50

  6. anonymous
    • one year ago
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    @Nnesha

  7. anonymous
    • one year ago
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    For the first one: We know that triangles must have their interior angles sum to 180 degrees. If one was 90, the other would be 45. So 180-(90+45)=45, and no other option. So 1

  8. anonymous
    • one year ago
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    For the second one: We want a perimeter that equals 160 because she is roping off the outside of the hole. We know that a rectangle has 2 pairs of equal opposite sides. And the Perimeter of our rectangle is 160=2(l+w). Really, from this point you can just plug and chug to get your answer, which is D 2(80)=160

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