Given:
The scale factor is 5: 1.
The measure of the side lengths of the drawing is given in the figure.
To find:
The measure of the side lengths of a real object.
Explanation:
The new measures will be calculated as follows,
The side length a will be,
[tex]\begin{gathered} a=Old\text{ length }\times Scale\text{ factor} \\ a=10\times\frac{1}{5} \\ a=2in \end{gathered}[/tex]
The side length b will be,
[tex]\begin{gathered} b=Old\text{ length }\times Scale\text{ factor} \\ b=10\times\frac{1}{5} \\ b=2in \end{gathered}[/tex]
The side length c will be,
[tex]\begin{gathered} c=Old\text{ length }\times Scale\text{ factor} \\ c=12\times\frac{1}{5} \\ c=2.4in \end{gathered}[/tex]
Therefore, the correct option is D.
Final answer:
The correct option is D.