Look at the two triangles below. Is EC a side of one of the triangles?
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Look at the two triangles below. Is EC a side of one of the triangles?
Every triangle has 3 sides. First let's go over the triangle on the left side:
Its sides are: AB, BC, and CA.
This means that in this triangle, side EC does not exist.
Let's then look at the triangle on the right side:
Its sides are: ED, EF, and FD.
This means that in this triangle, side EC also does not exist.
Therefore, EC is not a side in either of the triangles.
No
Is DE side in one of the triangles?
Look at the connecting lines in the diagram. Vertices are only connected if there's a direct line between them. In this problem, triangle ABC has vertices A, B, C connected, while triangle DEF has vertices D, E, F connected.
No! A side must connect two vertices that are directly linked in the same triangle. You can't create sides between vertices from different triangles.
Distance doesn't matter - only actual connections do! Even if two points appear close, they only form a side if there's a line drawn between them in the same triangle.
Every triangle has exactly 3 sides, no more, no less. Triangle ABC has sides AB, BC, and CA. Triangle DEF has sides DE, EF, and FD.
Because E belongs to triangle DEF and C belongs to triangle ABC. Since they're in different triangles, there's no direct connection between them, so EC cannot be a side.
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