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It has one vertex and a circular base.

It has four triangle faces, one vertex, and a square base.


It’s an equilateral triangle because all tree sides are equal. It has two sides that are equal.


It’s a rectangular prism because it had six faces and it’s 3D.

It’s a right angle because it is 90 degrees


This is an obtuse triangle because it has one angle that is greater than 90 degrees.

This is an acute triangle because it has one angle that is less than 90 degrees.

Geometry  

It helps kids learn things.