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BFBtrent
08.10.2020 •
Mathematics
A map of a rectangular park has a length of 4 inches and a width of 6 inches. It uses a scale of 1 inch for every 30 Miles. What is the actual area of the park? The map needs to be reproduced at a different scale so that it has an area of 6 square inches and can fit in a brochure. At what scale should the map be reproduced so that it fits on the brochure?
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Ответ:
Step-by-step explanation:
Dimensions of the rectangular park = 4 inches by 6 inches
Since scale factor =
= ![\frac{1}{30}](/tpl/images/0794/3595/d0f93.png)
Length of the original park = 120 miles
Similarly, width of the park = 180 miles
Area of the park = Length × Width
= 120 × 180
= 21600 square miles
Therefore, area of the original park is 21600 square miles.
Formula for the ratio of area of the park on map and original park is,
Scale factor =![\sqrt{\frac{1}{3600}}](/tpl/images/0794/3595/d5676.png)
=![\frac{1}{60}](/tpl/images/0794/3595/45b12.png)
Scale factor to reproduce the map so that it fits in the brochure will be 1 inch for every 60 miles.
Ответ:
54: 1, 2, 3, 6, 9, 18, 27, 54
90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
Step-by-step explanation: