When making a scale of 1cm to 8 metres is used. What would be the actual lenght of a wall that is 16cm on the drawing?
To find the actual length of a wall using a scale of 1 cm to 8 meters, you can set up a proportion where the scale ratio's left side is the drawing measurements and the right side is the real-world measurements.
The scale is 1 cm (on the drawing) : 8 m (in reality).
If the wall in the drawing is 16 cm, you want to know the actual length in meters (m). Let x be the actual length of the wall in meters. Set up the proportion as follows:
1 cm (drawing) / 8 m (reality) = 16 cm (drawing) / x m (reality)
Now, solve for x:
1/8 = 16/x
x = 16 * 8
x = 128
Therefore, the actual length of the wall is 128 meters.