Triangles Definition and 211 Threads

  1. A

    Sine and cosine law in oblique triangles

    Word Problem The leaning tower of pisa leans toward the south at an angle of 5.5 degrees. One day a shadow was 90 m long and the elevation from the tip of the shadow to the top of the tower was 32 degrees 1)Determine the slant height of the tower. First I found all the angles and then...
  2. A

    Special triangles and Unit Circles HELP

    If sin theta = \frac {-4} {7} and \frac {3 pi} {2} < theta < 2 pi then determine the exact value of \frac {1} {cot (theta)} I don't know where to start I know to set up a circle with a cartesian plane but what am I supposed to do? :rolleyes:
  3. P

    Volume of Isosceles Right Triangles with Base of x^2+y^2=9

    I don't have the answers in the back of my book and I really want to know if i did this correctly since its graded. the Problem is: Let the region bounded by x^2+y^2=9 be the base of a solid. Find the Volume if cross sections taken perpendicular to the base are isosceles right triangles. i...
  4. Z

    Can You Find Triangle Sides with Only Angle Information?

    I was wondering if you can find the sides of a right triangle if you only know the angles of the triangle...i couldn't think of a trig ID or any law..if there is, id like to know it, thanks.
  5. B

    Changing triangles to parallelograms?

    help me please
  6. B

    What is the proof for triangle ABC with known sides and angle relationships?

    ok, I'm in first year coolege and we're doing some review from high school work.. but i can't for the life of me remember how to do one of these questions and i can't seem to get past this one part or at least figure out how to prove that it is what i think it is. it's going to be a bit...
  7. D

    Does a median in a triangle create two congruent triangles?

    If a line in a triangle is a median, does it cut the triangle into two congruent triangles?
  8. E

    Someone good at math triangles and circles?

    Sorry to bother you guys.. but if there is someone out there that is good at math and wouldn't mind helping me.. could you aim me sn:"euphoriet" thanks.
  9. G

    Are Flying Triangles Real? Deciphering UFO Sightings and Technology

    Please move this post if necessary as I was not sure which forum it would be best suited to. Reference: http://space.com/businesstechnology...gle_040902.html http://www.msnbc.msn.com/id/5897539/ Assuming these sightings are not mass hallucinations and that a craft of unknown...
  10. Ivan Seeking

    What is the truth behind the mysterious flying triangles?

    A synopsis of recent events - 1990 through 2004. Included is a summary of archieved data. I'm still not quite sure about the flying triangle reports. I am convinced that these are real craft that are often seen as reported, but some good reports such as those from the Illinois police - who...
  11. C

    What is the solution to this tricky triangle problem?

    I found a neat problem on the web you can look at it http://physics.harvard.edu/undergrad/prob14.pdf I've always had fun with these find the angle problems but my solutions on this one seemed a little bit weird. Anyone want to let me know what they got? Heres what I found angle BCA = 20 and...
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