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2007-05-19 05:14:28 · 14 answers · asked by Icegirl 1 in Science & Mathematics Mathematics

14 answers

only one because a triangle has all together 180 degrees. THerefore is even one is 91 degrees, the other one would have to be less than 91, making it acute

2007-05-19 05:17:06 · answer #1 · answered by Brandon 3 · 2 1

It can only have one obtuse angle because the angles of a triangle have to equal 180 and an obtuse angle is greater than 90 so if its 95 and you have another obtuse angle thats 95 your angles would already be greater then 180 therefore it isnt possible to have more than 1 obtuse angle

2007-05-19 05:19:37 · answer #2 · answered by VBall LuVa! 3 · 0 2

A triangle can only have one obtuse angle.

Since all the angles in the triangle add up to 180 degrees, if you have one angle over 90 degrees (an obtuse angle), the other two must be less than 90 degrees for the angles to add up 180 degrees.

2007-05-19 05:18:03 · answer #3 · answered by guest20060730 2 · 0 2

Only one. An obtuse angle is greater than
90 degrees. If there were 2, the sum
of the angles of a triangle would exceed
180 degrees. Again, this refers to
planar triangles only!

2007-05-19 05:34:18 · answer #4 · answered by steiner1745 7 · 0 2

Only 1, since the obtuse angle is larger than 90 degrees.

2007-05-19 05:19:27 · answer #5 · answered by somewherein72 4 · 0 2

euclidian geometry "one"
- - - -
non-euclidian:
hyperbolic: "one"

elliptical: "three"
- - - -
consider a "spherical triangle" on the earth's surface. For a 'small' equilateral triangle that you might draw in the sand at your feet, each angle is 60 degrees [plus some infinitesimally small number]

next draw an equilateral triangle starting from the north pole down to the equator ... turn west and draw the next leg 1/4 of the way around the earth ... draw a line from this point back to the north pole.

you will have an equilateral triangle with each angle = 90 degrees.

any 'larger' equilateeral triangle will have three angles each larger that 90 degrees.
- - - -
- - - -

With them the seed of Wisdom did I sow,
And with my own hand wrought to make it grow:
And this was all the Harvest that I reap'd -
"I came like Water, and like Wind I go."

Omar Khayyam

2007-05-19 05:29:15 · answer #6 · answered by atheistforthebirthofjesus 6 · 1 1

Just one. Think about it. A triangle has to have three angles that equal 180 degrees, right? So, if you have two angles that both equaled 90 degrees (or more ), you wouldn't have a triangle.

2007-05-19 05:17:55 · answer #7 · answered by Lisa 5 · 0 2

Just one. The sum of the interior angles must be 180 degress, so if there were two more than 90 the sum would be too big.

2007-05-19 05:16:21 · answer #8 · answered by Anonymous · 0 1

One.

2007-05-19 05:17:02 · answer #9 · answered by Moondog 7 · 1 1

1 buddy

2007-05-19 05:30:36 · answer #10 · answered by zankhnakapadia 2 · 0 1

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