A triangle.
a squareAnswer:Assuming the question 's answer is an enclised figure with only 3 90o angles, a multitude of shapes have 3 right angles whether you consider 2 or 3 dimensional objects. A three sided pyramid (one of the vertexes of a cube passing through a plane) would meet the criteria. On a plane manys polygon can have 3 right angles with the other angles totaling 90o. On the surface of the Earth a set of lines can be established that are 90o to the equator that meet at the north pole at 90o as well
a quadrilateral can have from 0 to 4 right angles. But it can't have exactly three right angles. The interior angles of a quadrilateral sum to 360 degrees. If it had three right angles and x were the measure of the fourth angle: 3*90+x=360 x=360-270=90 So if it has three right angles, the fourth angle would be a right angle as well.
Polygon is a two dimensional figure that has three or more sides. Polygons are classified by their number of sides. Three sided is a triangle. A four sided figure is a quadrilateral. A five sided figure is a pentagon and so forth. The number of angles it has is equal to the number of sides.A polygon usaally has 5sides
A triangle has three sides and three angles that total 180 degrees.
a Pentagon is five sided and CAN have 3 right angles.
a decagon
There is no three-sided shape with two obtuse angles, because the three interior angles of a three-sided shape, which is a triangle, add up to 180 degrees, and two obtuse angles would be over 180 degrees.
It doesn't have to, but it can. A trapezoid is any shape in which there is a pair of parallel sides. This means that a square can be classified as a trapezoid. But notice that a four-sided shape can never have ONLY three 90° angles. The sum of angles of a four-sided shape is 360--this means that if you have three 90° angles, then the remaining angle must be 360-3(90) which is 90°, giving you four right angles. * * * * * No you cannot. As indicated in the second paragraph of the above answer, three right angles implies that all four angles are right angles and that makes the figure a rectangle (or a square).
A three sided shape is a triangle, all the angles in a triangle add up to 180 degrees.
A three sided shape is a triangle but the given angles are incorrect because a triangle can't possibly have a right angle and an obtuse angle because its 3 interior angles must add up to 180 degrees.
Such a three sided triangle with two right angles is impossible.
A Triangle drawn accross a sphere; NOT on a plane surface.
An acute angled triangle.
The three internal angles add up to 180 degrees.
A polygon refers to a plane figure that has at least three straight sides and angles. An 18 sided shape is called an octadecagon or octakaidecagon.
A right triangle.