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monique robles

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Q: Parallelograms can be used to create optical illusions. By looking at the black dot and moving back and forth from the image, the parallelograms appear to move. ABCD is a parallelogram. What is BD?
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Related questions

What is the name of a 4 sided 2D shape that has equal sides but isn't a parallelogram?

by definition all 4 sided 2D shapes with equal lengths are parallelograms because the lines on opposite sides must be parallel. However you may be looking for the word rhombus or diamond. Although I don't think you could forget the word diamond.


How many angles and sides in parallelogram?

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You must be looking at a Venn diagram of different kinds of quadrilaterals. Although I can't see your diagram, the most likely thing to look for is a trapezoid, or maybe a kite. Of course, there are many quadrilaterals with nothing special about them, they're just quadrilaterals.


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How many axes of symmetry does a paralllelogram have?

It depends on the type of parallelogram:The classic generic-looking parallelogram, having no right angles, and having adjacent sides of unequal length, has no lines of symmetry (only point symmetry about the point of intersection of the diagonals).Special types of parallelograms are as follows:A square has 4 lines of symmetry: horizontal, vertical, and one containing each diagonal.A non-square rhombus has two lines of symmetry: one containing each diagonal.A non-square rectangle has two lines of symmetry: horizontal and vertical.


How many acute angles are in a parallelogram?

Well, honey, a parallelogram has a grand total of zero acute angles. It's all about those congruent opposite angles being the same size, which means they're either both obtuse or both acute. So, if you're looking for acute angles, you better go find yourself a different shape to play with.


How do your eyes see optical illusions?

They sort of see it. You are just looking it in a different way.


What does a parallelogram that is not a rectangle look like?

Try looking at a rhombus, maybe that will help.


How do you the area of a parrellogram?

To find the area of a parallelogram, multiply the base length by the height of the parallelogram. The formula for the area of a parallelogram is A = base * height.


Show you a picture of a four-sided polygon with opposite sides parallel and no right angles?

The picture you are looking for is a parallelogram.


What do you call a rectangle that is slanted?

A slanted rectangle is a parallelogram in the same way that a slanted square is a rhombus.


How is math related to optical illusions?

Optical Illusions is all about math and you will know by the time you finish reading this very short, but general status about optical illusions. Optical has a lot to do with math because when your brain is looking at something, you know exactly what it is. But when a professional tells you what the object actually is, you suddenly see it, your brain is doing all the math but it realizes it's messing up and looks at it more carefully.