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There's no such name that covers all shapes with a 90 degree angle.

Squares have them, and so do rectangles.

A trapezoid could have one, but not more than one.

And any polygon with more than four sides can have one or more 90-degree angles,

but not all of its angles can be 90 degrees.

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12y ago
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Q: What is a shape with a 90 degree angle called?
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