2011 AMC 8 Problem 19
Attempt Problem 19 of the 2011 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2011 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
19.
How many rectangles are in this figure?
Answer: D
Small hint:
Count all single-region and multi-region rectangles systematically.
Big hint:
Break the figure into labeled small regions.
Solution:
We can split the figure into these regions to make it easier to count the rectangles.
The rectangles in this figure are and These form rectangles.
Thus, D is the correct answer.
Problem 19 in other years
- 1985 AMC 8
- 1986 AMC 8
- 1987 AMC 8
- 1988 AMC 8
- 1989 AMC 8
- 1990 AMC 8
- 1991 AMC 8
- 1992 AMC 8
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