Answer:
B, D, F
Explanation:
You want the diagrams that show lines through the center of enlargement, where the smaller triangle is enlarged to form the larger triangle.
Enlargement
Each point in an enlarged figure is moved toward or away from the center of enlargement along a line through that center. That is, corresponding vertices of a triangle and its enlargement will lie on a line through the enlargement center.
The diagrams of interest are those that show lines through corresponding vertices of the triangles.
Diagrams B, D, F show lines through the center of enlargement.
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Additional comment
The center of enlargement is marked in the attachment by a blue dot. Enlargement is by a factor of 3.
Points are moved away if the scale factor is greater than 1; toward the center of enlargement for a scale factor less than 1.
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