CPM Homework Help : INT1 Problem 7-8

Jay enlarged figure $A$ so that it was similar to figure $B$ . His diagram is shown at right. Homework Help ✎

What is the scale factor?
Hint (a):
Read Math Notes box in Lesson 7.1.1 to determine how to write a scale factor.
Remember a scale factor is a ratio (fraction).
What is the value of $x$ ? How do you know?
Hint (b):
Which side of figure A corresponds to side $x$ in figure $B$ ?
Multiply that side length by the scale factor you found in part (a).

2 quadrilaterals, left, smaller, titled, A, right, larger, titled, B, sides labeled as follows: A: vertical, 2 mm, slant up & right, 4 mm, slant down & right, 7 mm, B: vertical, 5 mm, slant up & right, 10 mm, slant, down & right, x.