The triangles shown are congruent by the SSS congruence theorem. The diagram shows the sequence of three rigid transformations used to map ABC onto A"B"C". What is the sequence of the transformations? a.rotation, then reflection, then translation b.rotation, then translation, then reflection c.translation, then reflection, then rotation d.translation, then rotation, then reflecti

QUESTION POSTED AT 01/06/2020 - 03:07 PM

Answered by admin AT 01/06/2020 - 03:07 PM

1. Let's check the problem backwards. So let's map A"B"C" to ABC

2. We first need to reflect  A"B"C" to A"B"C' with A"B"" as the axis of rotation.

3. Then we shift a few units up (translation) A"B"C' to A'B'C

4. Finally we rotate A'B'C around C to map the triangle onto ABC

going backwards we get the answer: b

b.rotation, then translation, then reflection

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