2020 AMC 8 Problem 25
Attempt Problem 25 of the 2020 AMC 8 below, then check your answer against the video solution and professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2020 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
25.
Rectangles and and squares and shown below, combine to form a rectangle that is units wide and units high. What is the side length of in units?
Answer: A
Small hint:
Let the square side lengths be
Big hint:
Subtract the height equation from the width equation
Video solution:
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Written solution:
Let be the side lengths of the three squares. Across the width of the large rectangle,
The height of is so the total height is Subtracting the height equation from the width equation gives so
Thus, the correct answer is A.
Problem 25 in other years
- 1985 AMC 8
- 1986 AMC 8
- 1987 AMC 8
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