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Vertices and Sides
People travel from all over the world to view da Vinci's masterpiece, the Mona Lisa. When people look at that famous painting, different things come to everyone's mind. Some people think she's too...
Concave and Convex Quadrilaterals
Gee willikers! What happened to Pacman?He looks so rigid and angular, nothing like his usual well-rounded self. Could it be that this isn't Pacman, but his evil twin—Quadman?! Well, it only makes...
Parallelograms are everywhere. They hide in plain sight, staring us straight in the face. Like towel rods and toilets, we use them every day and never give them much thought. Right now, as you read...
Now that we've covered the most common type of quadrilateral that we come across, we can bust out our shovels and dig a little deeper for rarer quadrilaterals. How will we know if a quadri...
You've probably known what a rectangle was since you were in preschool. We have to admit, they're pretty popular shapes. In the quadrilateral yearbook, rectangles would be voted best dressed, while...
If you thought rectangles were special, you're in for a treat. They're called squares, and they're perfect in every way. Well, not every way because no quadrilateral is perfect. But squares are cer...
We're through with the parallelograms. That's all of the major quadrilaterals, right? Uh...not so much.There are a couple more families of quadrilaterals that don't really fit inside any nice box....
The last family of quadrilaterals are the outcasts. They're different from the rest of the quadrilaterals, kind of like the socially awkward guest at the quadrilateral party.While the rest of them...
All our lives, we've been taught that boxes are bad. We shouldn't put things in boxes (at least, according to Rosencrantz and Guildenstern). It's better to think outside the box. And it's not exact...
We've been focused on triangles and quadrilaterals for a long, long time. But in this geometric jungle, there exist many more shapes than just three- and four-sided animals. There are figures with...
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