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
EQUILATERAL triangle. Two sides the same length , and two angles equal is ISOSCELES Triangle A triangle with a Right-Angle is a RIGHT -ANGLED Triangle No equal sides/angles is a SCALENE triangle.
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 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.
The following shape has three sides and the only angles are right angles. ----- | |___
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.
I will rephrase your question as "What shape has only three right angles?" A shape is a 2D drawing that encloses some space. The sum of the angles must exceed 270 degrees. A rectangle is out of the question as it has four right angles. But a 5 sided shape with unequal sides (irregular pentagon) or higher number of sides is fine. I wish Wikipedia would let draw on these answers, because I could draw hundreds of shapes with three right angles. When we talk of shapes, the most regular shapes come to mind, triangles, squares, pentagons, etc. But you did not spcify that my shape had to have straight sides. Imagine, for example, a circle which I will break at three places and insert right angles. Weird, but it does have three right angles. Do the right angles have to face in towards the center? I could even draw a more bizarre shape with with three right angles facing out, connected by curved lines.