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Not true because all quadrilaterals contain 2 triangles
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∙ 11y ago
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Is there a psychological reason why some people cut their sandwiches into triangles instead of rectangles?
No. It is just the person preference.
Can a trapezoid be formed into a square and triangle?
Yes, Some can even be formed into a square and two triangles or a rectangle and one or two triangles. Just drop perpendicular(s) from the vertex (vertices) of the short side to the long side (that is to say, the two sides which are parallel). That will form one or two right triangles and a rectangle of some sort...could be a square--all squares are rectangles but not all rectangles are squares.
What shapes contain right angles?
Squares, rectangles, and some triangles, most commonly. Any polygon could have a right angle if it is irregular.
What shape has more than 1 line of symetry?
Squares, circles, rectangles, and some triangles have more than 1 line of symmetry.
Are some rectangles similar?
no some rectangles cannot be similar. a rectangle is a shape with 2 = sides and then 2 more different = sides. it is impossible because if 2 rectangles were similar than that would not be a rectangle. similar means having corresponding sides no it is not possible
What shapes are defined as being polygons?
A polygon is described as being a plane shape with straight sides as a two dimensional shape. Some examples include triangles, squares, and rectangles.
Are some parallelograms rectangles?
In fact, some are rectangles, but not all are.
Are some rectangles quadrilaterals?
All rectangles are quadrilaterals. A quadrilateral has 4 sides; all rectangles have 4 sides; thus all rectangles are quadrilaterals.
What is a shape with corners called?
There are many, many shapes with corners. Each has its own name. Some examples are: Rectangles, Triangles, Septangles, parallelograms, trapezoids, cube, dodecahedrons, and so forth.
How you can find a shape with right angle?
Any and all squares and rectangles. Every one of these two shapes has only right angles. Though some triangles also have right angles.
What are some examples of convex polygon shapes?
All triangles and regular polygons such as squares, parallelograms, trapezoids, and rectangles are convex because each of their interior angles is less than 180o.
Are there some parallelograms that are rectangles?
All rectangles are parallelograms, so yes there are some.
