A shape that has three sides and includes right angles is a right triangle. In a right triangle, one of the angles is exactly 90 degrees, and the other two angles are acute. The sides of the triangle consist of the two legs that form the right angle and the hypotenuse opposite the right angle.
A plane (flat) shape with three sides is called a "triangle".Notice that if it has three sides, then it must have three angles.
To draw a six-sided shape (hexagon) with three right angles, start by creating a rectangle that will form the base. From one of the shorter sides, draw two vertical lines that extend outward at right angles, creating two additional sides. Connect these lines back to form a hexagon, ensuring that two of the angles remain right angles while adjusting the other angles as needed to maintain the six-sided structure. The final shape will have three right angles and three other angles that complete the hexagon.
An equilateral triangle
scalene triangle
A shape that fits this description is a regular triangle, also known as an equilateral triangle. It has no right angles, all three sides are congruent, and the sum of its internal angles is 180 degrees, which is less than 360 degrees. Another example could be a regular polygon with more than three sides that are all congruent, such as a regular hexagon, but it will have right angles at some internal arrangements.
The following shape has three sides and the only angles are right angles. ----- | |___
An irregular hexagon.
A triangle is a shape with three sides and three angles. This is a very basic shape taught to young children.
Any shape with three sides and three angles is called a triangle.
A plane (flat) shape with three sides is called a "triangle".Notice that if it has three sides, then it must have three angles.
Isosceles triangle.
An equilateral triangle has three equal sides and three equal angles.
An equilateral triangle
False - and false ! Not ALL angles are right-angles - and a triangle has THREE sides !
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.
A triangle has three sides and three angles that total 180 degrees.
scalene triangle