Question

Triangle GHI is rotated 90Degrees clockwise and then reflected over the y-axis. Which congruency statement is true?

Answer 1

The congruency statement which is true among the answer choices is;

• On a coordinate plane, triangle G H I is rotated 90 degrees clockwise and then is reflected over the y-axis.
• Triangle G H I is congruent to triangle G double-prime H double-prime I double-prime.

Which congruency statement is true?

According to the task content, the initial transformation is; Triangle GHI is rotated 90Degrees clockwise and then reflected over the y-axis.

On this note, the congruency which are true regarding the transformation are;

• On a coordinate plane, triangle G H I is rotated 90 degrees clockwise and then is reflected over the y-axis.
• Triangle G H I is congruent to triangle G double-prime H double-prime I double-prime.

This follows from the fact that the transformation.does not involved dilation by means of a scale factor and hence, size remains equal and all angle measures remain the same.

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