Unit 1, Lesson 18# Computing Actual Lengths from a Scale Drawing

EngageNY 45 min(s)

Given a scale drawing, students compute the lengths in the actual picture using the scale. Students identify the scale factor in order to make intuitive comparisons of size and then devise a strategy for efficiently finding actual lengths using the scale. The first example has students building upon the previous lesson by applying the scale factor to find missing dimensions. How can we use the scale factor to determine the actual measurements?