Ask questions and get helpful answers.

In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezoid.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩

10 answers

  1. you need the bases first.

    draw the sketch. label the top base a, the bottom c.
    now notice on c, it is longer than a by 2*k, where k is the length of the base below end triangles.

    Pyth: (c-k)^2=25^2-15^2
    or c-k=20cm
    but c=a+2K

    Now the median length:
    median=(a+c)/2=(c-2k+c)/2
    =2c-2k=2(c-k)=20cm

    area=median*height=20cm*15cm
    =300cm^2

    check my math.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. You are correct, the answer is 300cm^2

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. You are correct. Thank you.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  4. Do you think you could attach a labeled diagram? That would be greatly helpful.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  5. Hey man I got to get that 100

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  6. You know he is right

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  7. Ok listen, I know some people literally look up answers without even trying and that’s wrong. But I do RSM, and try 2-3 times while checking my work. Mind you I only look up answers on homework’s NEVER in class when I have the teacher to literally help me. If I don’t understand it on my own I look it up to help me and explain it, if I understand it I write it down to help me. Lol thanks for reading ig. Also what grade y’all in?

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  8. I did this:

    Pythagreon: (c-k)^2=25^2-15^2
    or c-k=20cm
    but c=a+2K

    Area
    area=median*height=20cm*15cm
    =300cm^2

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  9. Ok, but that was such a torturing long essay....I mean no one would type that much even for MCAS!! AND Imcool If u think u r soooo smart that u dont need to use this stuff then why did u search this question in the first place? and u say shame on us?!?

    ALSO, this question is part of homework not a test.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  10. U GUYS ARE SEARCHING UP RUSSIAN MATH FINAL TEST QUESTIONS SHAME ON YOU

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Answer this Question

Related Questions

Still need help?

You can ask a new question or browse existing questions.