Scale Drawings

Grade 645 min

aligned to 7.g.1 Solve Problems Involving Similar Figures With Right Triangles, Other Triangles, And Special Quadrilaterals. A. Compute Actual Lengths And Areas From A Scale Drawing And Reproduce A Scale Drawing At A Different Scale. B. Represent Proportional Relationships Within And Between Similar Figures.

Learning Objective

I can use proportions to find missing lengths on similar figures represented in scale drawings.

Lesson Flow

Watch Video

5 min

Scale Drawings

Unknown Channel

Practice

14 min

7 questions β€’ Short answer

Exit Ticket

5 min

β€œA scale drawing of a garden uses the scale 1 inch = 3 feet. If the length of the garden in the drawing is 5.5 inches, what is the actual length of the garden in feet? On a map, the scale is 1 centimeter = 10 kilometers. Two cities are 7.2 centimeters apart on the map. What is the actual distance between the two cities in kilometers? A blueprint of a table uses the scale 2 inches = 1 foot. If the actual width of the table is 3.5 feet, what is the width of the table on the blueprint in inches?”

Teacher Guide

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