CPM Homework Help : CC2 Problem 7-22

Use the triangles below right to answer the questions that follow.

What is the scale factor from A to B?
Hint (a):
What scale factor value times $6$ ft would result in $5$ ft? Consider the variable equation with $x$ as the scale factor:
$6x=5$
After isolating $x$ , what do you get as the scale factor?
Answer (a):
$\frac{5}{6}$
What is the scale factor from B to A?
Hint (b):
If the change from B to A is just the reverse of the change from A to B, what would the scale factor be? Create an expression like above if necessary.
What is the relationship of the scale factors?
Answer (c):
The scale factors are reciprocals.

2 triangles labeled A and B. The longest side on A is labeled as 6 ft and the longest side on B is labeled 5 ft.