Question

What kind of transformation, besides a rotation, has been done to triangle ABC?



(1 point)
Responses

a rotation
a rotation

a reflection, then a translation
a reflection, then a translation

a composition
a composition

a dilation

Answer 1

I don’t see the diagram, so I can’t pick the correct choice yet. Tell me one of these (or upload the picture):

- coordinates of A, B, C and A′, B′, C′, or
- whether the image is the same size as the original, or larger/smaller, and whether the vertex order is reversed (ABC clockwise vs A′B′C′ counterclockwise), or
- a short description of how the two triangles sit (e.g. “A′ is twice as far from the origin as A,” or “triangle A′B′C′ is a mirror of ABC across line y = x,” etc.).

How to decide (quick guide):
- If all side lengths are scaled by the same factor (not 1) → dilation (possibly combined with rotation/translation).
- If side lengths are unchanged but the orientation (vertex order) is reversed → a reflection (may be followed by a translation).
- If more than one basic move was used (e.g. reflection then translation) → a composition.
- If nothing changed except rotation → rotation.

Send the diagram or coordinates and I’ll identify the transformation.