Scale Drawings: Reading, Computing, and Reproducing Geometric Figures

Work through each section in order. Show your proportion setup for all scale problems.

Grade 7·23 problems·~35 min·Common Core Math - Grade 7·standard·7-g-a-1

Work through problems with immediate feedback

Fluency Practice

A scale drawing uses the scale 1 cm : 3 m. A room measures 4.5 cm on the drawing.

Which proportion correctly sets up the calculation for the actual length?

$\dfrac{1 \text{ cm}}{3 \text{ m}} = \dfrac{4.5 \text{ cm}}{? \text{ m}}$

$\dfrac{3 \text{ m}}{1 \text{ cm}} = \dfrac{4.5 \text{ m}}{? \text{ cm}}$

$\dfrac{1}{3} = \dfrac{?}{4.5}$

$\dfrac{1 \text{ cm}}{4.5 \text{ cm}} = \dfrac{3 \text{ m}}{? \text{ m}}$