input: Isosceles triangle

Whether the isosceles triangle is acute, right or obtuse depends on the vertex angle. In Euclidean geometry, the base angles cannot be obtuse (greater than 90) or right (equal to 90) because their measures would sum to at least 180, the total of all angles in any Euclidean triangle. Since a triangle is obtuse or right if and only if one of its angles is obtuse or right, respectively, an isosceles triangle is obtuse, right or acute if and only if its vertex angle is respectively obtuse, right or acute.

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can the base angle of an isosceles triangle be obtuse
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output: no
Question: In college, the ''flagrant collision'' rule discourages, but does not prohibit, collisions at home plate and on the bases. Instead, only ''unnecessary and violent'' collisions are outlawed. While defensive players are allowed to block the plate/base with clear possession of the ball, offensive players must take steps to ensure contact with the fielder is legal--for instance, it must be below the waist. Violations of this rule carry similar penalties to the high school malicious contact rule. can you block the plate in college baseball

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Answer: yes
IN: The Way is a 2010 Spanish drama film directed, produced and written by Emilio Estevez, starring his father Martin Sheen, Deborah Kara Unger, James Nesbitt, Yorick van Wageningen, and Renee Estevez.
is the film the way a true story?

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OUT: no
What's the best answer to this question: is puerto rico considered one of the 50 states?

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Answer: no
Text: The NBA playoffs are a best-of-seven elimination tournament annually held after the National Basketball Association's regular season to determine the league's champion.

Question: is the first round of nba playoffs best of 7?

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[separator]
Answer: yes
Problem: Text: Euclid's theorem is a fundamental statement in number theory that asserts that there are infinitely many prime numbers. There are several well-known proofs of the theorem.

Question: are there a finite number of prime numbers?

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- no
- yes
A:
no