Practice With Proportional Relationships
- Let’s find unknown values in proportional relationships.
Quadrilateral \(ABCD\) is similar to quadrilateral \(A’B’C’D’\). Select all statements that must be true.
Lines \(BC\) and \(DE\) are both vertical. What is the length of \(AD\)?
The quilt is made of squares with diagonals. Side length \(AB\) is 2.
- What is the length of \(BD\)?
- What is the area of triangle \(AEH\)?
Segment \(A’B’\) is parallel to segment \(AB\). What is the length of segment \(BB'\)?
Elena thinks length \(BC\) is 16.5 units. Lin thinks the length of \(BC\) is 17.1 units. Do you agree with either of them? Explain or show your reasoning.
Mai thinks knowing the measures of 2 sides is enough to show triangle similarity. Do you agree? Explain or show your reasoning.
Line \(g\) is dilated with a center of dilation at \(A\). The image is line \(f\). Approximate the scale factor.