Q: Can a triangle have three right angles?

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It is impossible to have a triangle with 3 right angles. It is possible to draw a triangle with three right angles on the surface of a sphere: www.metacafe.com/watch/769025/270_degree_triangle_yes_3_right_angles

If one of the angles is 90 degrees then it is right ange triangle If one of the angles is obtuse then it is an obtuse triangle If the three angles are 3 different acute then it is a scalene triangle If two of the angles are equal then it is an isosceles triangle If the three angles are equal then it is an equilateral triangle

Every triangle has three interior angles which total 180 degrees. A right triangle has one of the angles as 90 degrees.

If one of the three interior angles is 90 degrees then it is a right triangle.

No you cannot make a triangle with two right angles. In all triangles the sum of the angles is always 180°. Also all triangles have three angles. If there are two right angles, you already have 180° and cannot have another angle to complete the triangle.

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Yes. A right triangle is a triangle where one angle is a right angle. If two out of three angles are right angles, then it's an isosceles triangle. If all three angles are right angles, then it is an equilateral triangle.

False - and false ! Not ALL angles are right-angles - and a triangle has THREE sides !

It is impossible to have a triangle with 3 right angles. It is possible to draw a triangle with three right angles on the surface of a sphere: www.metacafe.com/watch/769025/270_degree_triangle_yes_3_right_angles

Three.

No, an equilateral triangle as three 60 degree angles.

If one of the angles is 90 degrees then it is right ange triangle If one of the angles is obtuse then it is an obtuse triangle If the three angles are 3 different acute then it is a scalene triangle If two of the angles are equal then it is an isosceles triangle If the three angles are equal then it is an equilateral triangle

Every triangle has three interior angles which total 180 degrees. A right triangle has one of the angles as 90 degrees.

The most right angles a triangle can possibly have is 1. Any more than that, and it has to be a quadrilateral.

As there are 180 degrees in every triangle, and you have to have three angles, you can only have one right angle.

Triangles do not necessarily have right angles, but they can. A triangle with a right angle is called a right triangle. A triangle cannot have more than one right angle, since the total of all three angles of every triangle equals 180°.

A triangle cannot have two right angles. Triangles angles should add up to 180. There are three angles. If there are 2 right angles, there would be no third angle, therefore, no triangle. XD

All three interior angles of a spherical triangle may be right angles.