Answer:
D. 1.8 m
Step-by-step explanation:
On a scale drawing,
1 millimeter = 4 centimeters.
A line on the drawing is 45 millimeters, then
1 mm - 4 cm
45 mm - x cm
Write a proportion:
[tex]\dfrac{1}{45}=\dfrac{4}{x}[/tex]
Cross multiply:
[tex]x=45\cdot 4\\ \\x=180\ cm[/tex]
Note that
[tex]1\ m=100\ cm,[/tex]
then
1 m - 100 cm
y m - 180 cm
Write a proportion:
[tex]\dfrac{1}{y}=\dfrac{100}{180}[/tex]
Cross multiply:
[tex]100y=180\\ \\y=1.8\ m[/tex]
