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Two triangles on the coordinates plane are shown below

What sequence of transformations could be applied to map triangle EBD onto triangle CBA?

first a ______, followed by a _____

Two triangles on the coordinates plane are shown below What sequence of transformations-example-1

1 Answer

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There are two possible ways to transform triangle ERD onto triangle CB4:

1.Reflect across the x-axis, then rotate 180 degrees. This flips ERD and brings it directly onto CB4.

2.Rotate 90 degrees clockwise, then reflect across the y-axis. This rotates ERD and then flips it to match CB4.

Both methods achieve the same outcome, but use different combinations of transformations.

Here are two possible sequences of transformations that could map triangle ERD onto triangle CB4:

Sequence 1:

Reflection across the x-axis: This would flip ERD across the x-axis, creating a new triangle E'R'D' that is congruent to ERD but mirrored.

Rotation of 180 degrees: This would rotate E'R'D' 180 degrees, bringing it directly onto triangle CB4.

Sequence 2:

Rotation of 90 degrees clockwise: This would rotate ERD 90 degrees clockwise, creating a new triangle ER''D''.

Reflection across the y-axis: This would reflect ER''D'' across the y-axis, resulting in triangle CB4.

Both sequences achieve the same outcome, but they use different combinations of transformations. The choice of which sequence to use might depend on the specific context or desired visualization.

Here are some additional points to consider:

The triangles ERD and CB4 are not congruent in the sense that they have the same side lengths and angles. However, they are similar, meaning that their corresponding angles are equal and their side lengths are proportional.

The transformations described above are rigid motions, which means they preserve distances and angles. This is an important property when considering geometric transformations.

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