1988 AMC 8 Problem 5
Attempt Problem 5 of the 1988 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 1988 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
5.
If is a right angle, then this protractor indicates that the measure of is approximately
Answer: C
Small hint:
On the protractor, ray reads about and ray reads about
Big hint:
Since and reads ray reads Then is the difference between the readings of and
Solution:
Reading the protractor, ray is at about and ray is at about
Because is a right angle, ray is at
Therefore
Thus, the correct answer is C .
Problem 5 in other years
- 1985 AMC 8
- 1986 AMC 8
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