Geometry

posted by .

Write an indirect proof that an obtuse triangle does not have a right angle.
Given: Triangle RST is an obtuse triangle.
Prove: Triangle RST does not have a right angle.

Let angle S be an obtuse angle. Assume Triangle RST has a right angle. Let angle R be a right angle. Use direct reasoning to lead to a contradiction.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    how do you name a obtuse angle when you are naming an angle just look for where the angle occurs and when writting it place it in the middle of the three points and draw a little triangle thingy over the top for eg. angle ABC would …
  2. geometry

    If you had two triangles, triangle RST and triangle UVW, and in triangle RST angle R= angle S= angle T and in triangle UVW angle U= angle V= angle W, is there enough information to prove that the triangles are congruent?
  3. geometry

    obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 of angle CBD is 4 more than angle BAD. Find the measure of angle ABC.
  4. Geometry

    Given: obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 angle BDC and angle CBD is 4 more than angle BAD. What is the measure of angle ABC?
  5. geometry

    Indirect proof given triangle ABC,<B is an obtuse angle prove there can only be one obtuse angle in triangle.
  6. Math-CHECK PLEASE

    Which of the statements is ALWAYS TRUE? A-A right triangle is a scalene triangle. B-An equilateral triangle is an isosceles triangle. C-An isosceles triangle is an obtuse triangle. D-A right triangle is an acute triangle. I got either
  7. geometry

    sketch label and mark each figure 1.Isoscles obtuse triangle TRI with vertex angle T. 2.Rhombus RHOM with acute <H and the shorter diagonal. 3.Scalene right triangle SCA with midpoints L,M and N on SC, CA, and SA, respecitively. …
  8. geometry

    find the value of x in each triangle: triangle x has 1 angle at 53 degree for value x i got: 63.5 degree is that correct?
  9. angle measurements HELP ME PLZ QUICKLY!!!

    name the type or triangle with angle measurements of 30 degrees , 60 degrees, and 90 degrees. A. a acute triangle B. a equilateral triangle C. right triangle D. a Obtuse ( I think its a right am I right?
  10. Math

    Can someone please check to see if I answered these true and false statements correctly?

More Similar Questions