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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

Q: Is it possible to draw a triangle with three right angles on a sphere?

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No

Not in traditional, 2 dimensional, euclidean geometry, because a triangles angles always equal 180º .However, there is a branch of Geometry that deals with a coordinate system on a sphere, instead of a plane, and in spherical geometry a triangle with three right angles is very much possible. Consider, for example, the triangle bounded by the Prime Meridian, 90o west longitude, and the equator.

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.

A triangle can never have three right angles

a right triangle has one right angle and two acute angles

Related questions

Yes, although a triangle (in normal geometry) can only have one right angle, no more. It is possible for a triangle to have all three right angles in spherical geometry (if you were to draw the triangle on a sphere).

462 * * * * * It can have three.

No. It is not possible to have two right angles.

No it is not possible to draw 1 triangle with 2 right angles because the angles in a triangle should equal to 180 degrees

Easily. /\ /__\

What you are asking, and I suspect you don't realise, is "can a triangle's angles add to 270o?" which of course it can not do on a two dimensional surface, It is possible on eg a sphere, think of the angles between 0o and 90o of longitude at the Equator and the Pole...

In the country of the Fourth Dimension! In our world a triangle can have three right angles on a sphere: consider the triangle formed by the Equator, Longitude 0o and Longitude 90o.

Why yes it is possible in fact it's called the "Right Triangle" It has one right angle at the bottom and to other angles lower then 90˚

Circle, cone, cylinder, sphere and equilateral triangle for example.

No

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

No, it is impossible to draw an equiangular right triangle. An equiangular triangle has three 60o angles. A right triangle has one 90o angle, and two 45o angles.