Leonardo da Vinci was commissioned to construct a huge bronze horse for the Duke of Milan. Unfortunately, he died before he could complete it.
Five hundred years later, master sculptor Nina Akamu created
an 8-foot clay model from da Vinci’s sketches. The model was then enlarged by sections to become the 24-foot Il Cavallo—the largest bronze horse in the world.
A scale
drawing or scale
model is used to represent an object that is too large or too small to be drawn or built at actual size. The scale is the ratio of a length on the
drawing or model to the corresponding length of the real object.
The scale is 1 foot = 3 feet or 1:3.
If the scale uses the same units, it is not necessary to
include them.
One of the most common types of scale drawings is a map.
Example
Map Link
1. The scale on a map of Texas is 1 inch = 50 miles. Find the actual distance
between Dallas and Houston if the distance between them on the map is 4.5
inches.
Alternative
Solutions :
Use
the scale and the distance given on the map to write a proportion.
The
distance between Dallas and Houston is about 225 miles.
You can determine the scale if you know the dimensions of the
model and the dimensions of the actual object.
Example
Movie Link
2. The ship Titanic, which sank in 1912, was 880 feet long. When a movie was
made about it more than 80 years later, a 44-foot-long model of the ship was
created for special effects shots. Find the scale that was needed to design
other parts of the model.
Alternative
Solutions :
Write
the ratio of the length of the model to the length of the ship.
Then
solve a proportion in which the length of the model is 1 foot and the length of
the ship is x feet.
The
scale is 1 foot = 20 feet or 1:20.
Sumber
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