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Homework Statement
The scale on a map is 1:25000. The lenght of a wall on the map is 3.2 mm. Find the actual length in metres.
25,000 x 3.2 = 80,000 x 10^{-3} = 80 cmEach 1 mm distance on the map represents 25,000 mm (= 2.5 meters) on the ground. If the length of some feature on the map happened to be 10 mm, you would set up a proportion like this, where x represents the actual length of the feature, in mm.
[tex]\frac{1}{25000}=\frac{10}{x}[/tex]
After solving for x in this equation, convert to meters.
Either a typo or a brain fart, 25m :tongue:25,000 mm (= 2.5 meters)
It shouldn't be cm.25,000 x 3.2 = 80,000 x 10^{-3} = 80 cm
Unfortunately, the latter. It looked odd to me, but I still didn't catch it.Either a typo or a brain fart, 25m :tongue:
It shouldn't be cm.
25,000 x 3.2 mm = 80,000 mm = 80,000 x 10^{-3} m = 80 m