Question

Select the correct answer. Triangle is reflected across the y-axis and then dilated by a factor of centered at the origin. Which statement correctly describes the resulting image, triangle ? A. The dilation preserves the side lengths and angles of triangle . The reflection does not preserve side lengths and angles. B. The reflection preserves the side lengths and angles of triangle . The dilation preserves angles but not side lengths. C. Neither the reflection nor the dilation preserves the side lengths and angles of triangle . D. Both the reflection and dilation preserve the side lengths and angles of triangle .

Answer 1

Answer:

B. The reflection preserves the side lengths and angles of triangle. The dilation preserves angles but not side lengths.

Step-by-step explanation:

A reflection is when the position of an object is shifted and does not affect the side lengths or angle measures of the object. (this eliminates options A. and C.)

A dilation is when you change the size of an object a=and changes the side lengths but does not affect angle measures (this eliminates option D.)

The correct answer is:

B. The reflection preserves the side lengths and angles of triangle. The dilation preserves angles but not side lengths.