1985 AMC 8 Problem 19
Below is the professionally curated solution for Problem 19 of the 1985 AMC 8, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1985 AMC 8 solutions, or check the answer key.
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Difficulty rating: 800
19.
If the length and width of a rectangle are each increased by then the perimeter of the rectangle is increased by
Solution:
The new perimeter is which is times the old perimeter.
That is a increase.
Thus, the correct answer is B .
Problem 19 in Other Years
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