Are Triangles Trapezoids?

Geometry Level 1

Are triangles trapezoids? Think about it a second before answering.
A triangle looks like a trapezoids with one base equal to 0.
The formulas support this too! $\frac{b}{2}\times h$ or $\frac{b_{1}+b_{2}}{2}\times h$ .

So, are they trapezoids?

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