2007-05-19 05:18:51 · 13 answers · asked by Icegirl 1 in Science & Mathematics ➔ Mathematics
No, the total measure for the three angles should be 180, if you have 90, u r left with 2 acute angles that their sum is equal to the other 90
2007-05-19 05:26:42 · answer #1 · answered by A S 2 · 2⤊ 1⤋
Yes, just not on a flat, 2 dimensional surface,
Look at a globe, more specifically the latitude/longitude lines and where the Prime mediterranean and the 90° latitude lines intersect at the poles and at the equator, you will notice that all the angles formed by those 3 points of intersection are 90° angles, and the sum of the measures of the angles is 270°.
Also, if you were to draw a triangle on the inside of the globe, you would find that a triangle would have a angular sum of less than 180°, the amount less depending on the amount of curvature of the surface.
BUT, on a flat plane, a triangle cannot have more than one 90° angle.
2007-05-19 08:26:34 · answer #2 · answered by Anonymous · 1⤊ 0⤋
No. B'cos sum of angles of a triangle is 180degrees. A triangle has 3 angles. If 2 angles r 90degrees, then the 3rd angle is 0degrees, which is not possible. Thus a triangle can't have more than right angle.
2007-05-19 05:35:44 · answer #3 · answered by DEVIPRASAD V 1 · 0⤊ 0⤋
On a flat surface - no.
On a positively curved surface (such as a sphere) it is possible. Think about the earth. Imagine a large triangle drawn on the surface with one side on the equator and two right angles drawn northwards from there. They would meet at the North Pole. There would be two right angles in this triangle (if the base is quarter the circumference of the earth there would be three). On a positively curved surface the sum of the angles of a triangle would be greater than 180 degrees and would increase as the area of the triangle increases.
On a negatively curved surface (such as a saddle), the sum of the angles of a triangle would be less than 180 degrees.
2007-05-19 05:45:35 · answer #4 · answered by gudspeling 7 · 2⤊ 0⤋
I think I remember reading (through a question previously asked on yahoo answers) that a triangle can have more than one right angle in the context of 3 dimensions; that is, if a triangle is circumscribed into a sphere. I can't verify this for myself though, but this was asked in the past as a trick question.
2007-05-19 05:38:30 · answer #5 · answered by Puggy 7 · 1⤊ 0⤋
Yes.
The Equator crosses the Prime Meridian and the West 090º meridian at right angles. Make the North Pole the third point of the triangle: the internal angle there is also a right angle. That is a triangle with three right angles.
2007-05-19 05:33:16 · answer #6 · answered by Mark 6 · 3⤊ 0⤋
No. A + B + C = 180 degrees. Which means that the sum of all three angles of a triangle equal 180 degrees. If you have two right angles you have an open square.
2007-05-19 05:54:25 · answer #7 · answered by ikeman32 6 · 0⤊ 1⤋
No, since the sum of the angles of a triangle
is 180 degrees. If there were two right
angles, then the sum would exceed 180
degrees.
Of course, we mean triangles in the plane!
2007-05-19 05:30:57 · answer #8 · answered by steiner1745 7 · 0⤊ 1⤋
Nope. All 3 angles have to equal 180. If two equal 180 .. well that's a straight line and no room for a third!
2007-05-19 05:25:49 · answer #9 · answered by christmastree 3 · 1⤊ 1⤋
No. There would be no room left for the third angle since the some of two of the angles would already be 180 degress.
2007-05-19 05:23:59 · answer #10 · answered by Anonymous · 1⤊ 0⤋