It could be an isosceles right triangle, or it could be a non-regular specimen of
any polygon with more than three sides.
Rhombus :)
the answer is square's.
square
A four-sided shape with one right angle is a quadrilateral. There is no more specific term, unless it has more than one right angle or has equal sides.
A square is a two-dimensional shape with four equal sides and four right angles.
The shape you are describing is an isosceles right triangle. This triangle has one right angle (90 degrees) and two sides of equal length, known as the legs. The third side, called the hypotenuse, is opposite the right angle and is longer than the other two sides. This configuration creates a distinct geometric shape with specific properties related to angles and side lengths.
A rhombus, (or a square if there's a right angle).
A shape with three sides is called a triangle: 3 equal sides = equilateral 2 sides same length = isosceles 1 right angle = right-angled triangle
a pentagon
With right angles it is a square.Without right angles it is a rhombus.
triangle
Angles can be classified by size:Acute angle: between 0° and 90°Right angle: equal to 90°Obtuse angle: between 90° and 180°Straight angle (line): equal to 180°Reflex angle: between 180° and 360°In a shape, an angle can be an interior angle or an exterior angle.Angles that sum to 90° are called complementary angles.Angles that sum to 180° are called supplementary angles.