Similar figures pratice

Sure! Here are a few questions to practice identifying similar figures:

1) Consider two triangles with side lengths 3, 4, and 5 and 6, 8, and 10. Are these triangles similar? If so, what is the scale factor?

2) Find the missing side length in the following pair of similar triangles:
Triangle A: side lengths 6, 8, and x
Triangle B: side lengths 9, 12, and 15

3) Determine whether the following pair of polygons are similar or not:
Polygon A: side lengths 2, 4, 5, and 6
Polygon B: side lengths 3, 6, 7, and 9

4) Consider a pair of similar rectangles with side lengths 4 and 8 and 9 and 18. Find the ratio of their perimeters.

5) Triangle A has side lengths 5, 12, and 13, and triangle B has side lengths 15, 36, and 39. Are these triangles similar? If so, what is the scale factor?

6) Find the missing side length in the following pair of similar figures:
Figure A: side lengths 3, 5, 8, 10, and x
Figure B: side lengths 4, 7, 14, 18, and 20

Remember, two figures are similar if their corresponding angles are congruent and the ratios of their corresponding side lengths are equal. Good luck!