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For questions 1-3, decide whether each transformation will result in congruent or similar figures.

1. Quadrilateral ABCD is translated 5 units and 4 units down, then reflected in the y-axis.

2. ΔJKL is dilated by a scale factor of 2 and then rotated 180° about the origin.

3. Line segment XY is rotated 90° about the origin , dilated by a scale factor of -1/2, and then reflected in the line x = 5.

Respuesta :

Answer:

1) Quadrilateral ABCD is translated 5 units and 4 units down, then reflected in the y-axis. This will result in congruent figures. Translation only moves the figure without changing the size or shape, and reflection in the y-axis will mirror the figure across the y-axis without altering its size or shape. Since both operations preserve the size and shape of the figure, the resulting figure will be congruent to the original.

2) ΔJKL is dilated by a scale factor of 2 and then rotated 180° about the origin. This will result in congruent figures. Dilation by a scale factor of 2 will double the size of the triangle while maintaining its shape, and rotation by 180° about the origin will flip the triangle over the origin while maintaining its shape. Since both operations preserve the size and shape of the figure, the resulting figure will be congruent to the original.

3) Line segment XY is rotated 90° about the origin, dilated by a scale factor of -1/2, and then reflected in the line x = 5. This will result in similar figures. Rotation by 90° about the origin will rotate the line segment by 90 degrees, dilated by a scale factor of -1/2 will shrink the size by half but with a change in direction and reflection in the line x = 5 will mirror the figure across the x=5 line without altering its size or shape. Since all the operations maintain the shape of the figure but the size changes, the resulting figure will be similar to the original one.

Question 1

Translation and reflection doesn't change the shape or size of the figure, therefore the resulting figure is congruent to the initial one.

Question 2

Rotation doesn't change the shape of the figure, but dilation changes the size, therefore the resulting figure is similar to the initial one.

Question 3

Rotation and reflection don't change, but dilation changes the size, therefore the resulting segment is similar to the initial one.