1987 AMC 8 Problem 5

Attempt Problem 5 of the 1987 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 1987 AMC 8 solutions, or check the answer key.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

5.

What is the area, in square meters, of the rectangular region shown?
0.088 m20.088 \text{ m}^2
0.62 m20.62 \text{ m}^2
0.88 m20.88 \text{ m}^2
1.24 m21.24 \text{ m}^2
4.22 m24.22 \text{ m}^2
Answer: A
Concepts:areadecimal
Small hint:
The area of a rectangle is its length times its width
Big hint:
Multiply 0.40.4 by 0.220.22
Solution:
The area is 0.4×0.22=0.0880.4 \times 0.22 = 0.088 square meters.
Thus, the correct answer is A .
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