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What is right triangle geometry?
A right triangle in geometry is a triangle that has 90 degrees as one of its angles.
Prove that the sum of angles of a triangle is equal to 180 degress?
The proof is pretty simple, but hard to see without the pictures. SO here is a link to the proof with some pics. http://www.apronus.com/geometry/triangle.htm The answer depends on your geometry: In Euclidean geometry, the angle sum is 180 degrees, in Hyperbolic geometry it is less than 180 degrees, and in Elliptical geometry it is greater than 180 degrees.
Is it possible to have a 181 degrees triangle?
No, it is not possible to have a triangle with an angle of 181 degrees. The sum of the interior angles of a triangle is always 180 degrees according to Euclidean geometry. Any triangle with an angle greater than 180 degrees would not be a valid geometric shape.
Math geometry 10 grade?
what is a obtuse scalene triangle It's a triangle with one angle greater than 90 degrees, and no sides equal.
A triangle with two acute angles must be a right angle?
No. The three angles in a triangle, in plane Euclidean geometry, must add to 180 degrees. Acute angles are less than 90 degrees. Therefore you may have a triangle with three angles which are 60 degrees for instance.
