To determine the transformations made to triangle \( \triangle ABC \) to produce triangle \( \triangle XYZ \), we first need to analyze the coordinates of the vertices of both triangles:
Coordinates of Triangle \( ABC \):
- \( A (-5, 2) \)
- \( B (-3, 2) \)
- \( C (-3, 5) \)
Coordinates of Triangle \( XYZ \):
- \( X (0, -6) \)
- \( Y (0, -4) \)
- \( Z (-3, -4) \)
Step 1: Identify the transformations
- Translation: We need to find how to translate triangle \( ABC \) to obtain triangle \( XYZ \).
- The x-coordinates of \( A, B, C \) transform to the x-coordinates of \( X, Y, Z \).
- The y-coordinates of \( A, B, C \) transform to the y-coordinates of \( X, Y, Z \).
Calculate translation vector
To translate \( \triangle ABC \) to \( \triangle XYZ \):
- The translation needed to move point \( C (-3, 5) \) to point \( Z (-3, -4) \):
- x-coordinate: No change (from -3 to -3, translation in x is 0).
- y-coordinate: Move from 5 to -4, which is down by 9 units (5 - 9 = -4).
Thus, the translation vector is:
- Translation Vector = \( (0, -9) \)
Step 2: Apply the translation to the points
Now let's apply the translation \( (0, -9) \) to \( \triangle ABC \):
- New coordinates of \( A \): \[ A' = (-5 + 0, 2 - 9) = (-5, -7) \]
- New coordinates of \( B \): \[ B' = (-3 + 0, 2 - 9) = (-3, -7) \]
- New coordinates of \( C \): \[ C' = (-3 + 0, 5 - 9) = (-3, -4) \]
Points after translation:
- Translated \( A' (-5, -7) \)
- Translated \( B' (-3, -7) \)
- Translated \( C' (-3, -4) \)
Step 3: Compare the triangles
Now we need to examine if \( \triangle ABC \) and \( \triangle XYZ \) are congruent. For triangles to be congruent, their corresponding sides must be equal in length.
Calculate side lengths of triangle \( ABC \):
- Length \( AB \): \[ AB = \sqrt{((-3) - (-5))^2 + ((2) - (2))^2} = \sqrt{(2)^2 + (0)^2} = 2 \]
- Length \( BC \): \[ BC = \sqrt{((-3) - (-3))^2 + ((5) - (2))^2} = \sqrt{(0)^2 + (3)^2} = 3 \]
- Length \( AC \): \[ AC = \sqrt{((-3) - (-5))^2 + ((5) - (2))^2} = \sqrt{(2)^2 + (3)^2} = \sqrt{13} \]
Calculate side lengths of triangle \( XYZ \):
- Length \( XY \): \[ XY = \sqrt{((0) - (0))^2 + ((-4) - (-6))^2} = \sqrt{(0)^2 + (2)^2} = 2 \]
- Length \( YZ \): \[ YZ = \sqrt{((-3) - (0))^2 + ((-4) - (-4))^2} = \sqrt{(-3)^2 + (0)^2} = 3 \]
- Length \( XZ \): \[ XZ = \sqrt{((-3) - (0))^2 + ((-4) - (-6))^2} = \sqrt{(-3)^2 + (2)^2} = \sqrt{13} \]
Step 4: Check congruence
Comparing side lengths of \( \triangle ABC \) and \( \triangle XYZ \):
- \( AB = XY \) (2 = 2)
- \( BC = YZ \) (3 = 3)
- \( AC = XZ \) (\( \sqrt{13} = \sqrt{13} \))
Conclusion
Since the corresponding sides of both triangles are equal in length, we conclude:
- The triangles \( \triangle ABC \) and \( \triangle XYZ \) are congruent by the Side-Side-Side (SSS) congruence criterion.
Final Answer
The transformation was a translation of \( (0, -9) \), and yes, \( \triangle ABC \) is congruent to \( \triangle XYZ \).