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Uncommon card · Society
Law of sines, an Uncommon card
In trigonometry, the law of sines is a mathematical equation relating the lengths of the sides of any triangle to the sines of its angles.
- Rarity
- Uncommon
- Domain
- Society
- ATK
- 69
- DEF
- 60
- Power
- 129
- Wikipedia reads a year
- 96,000
Power 129 (ATK + DEF): stronger than 70 % of WikiCards cards.
Law of sines quiz: 3 questions
Three questions on the Law of sines card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It can also be used when two sides and one of the non-enclosed ______ are known.
Answer
angles. It can also be used when two sides and one of the non-enclosed angles are known. From the Law of sines article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
James Dolan. James Dolan 510,000 · ATP Masters 1000 tournaments 320,000 · Crew cut 120,000 · Law of sines 96,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- According to the law, a sin α = b sin β = c sin γ = 2 R, where a, b, and c are the lengths of the sides of a triangle, and α, β, and γ are the opposite angles, while R is the radius of the triangle's circumcircle.
- When the last part of the equation is not used, the law is sometimes stated using the reciprocals, sin α a = sin β b = sin γ c. The law of sines can be used to compute the remaining sides of a triangle when two angles and a side are known, a technique known as triangulation.
- It can also be used when two sides and one of the non-enclosed angles are known.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Law of sines article was read about 96,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 69 and blocks with 60: each hit it takes is cut by 24 %.
How to get Law of sines
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Society cards
Cards close in power
The cards just above and just below Law of sines in the power ranking, all domains together.
- Crew cutUncommon · Arts · ATK 63 DEF 66
- South FloridaUncommon · Society · ATK 65 DEF 64
- MeasurementUncommon · Science · ATK 69 DEF 60
- American red squirrelUncommon · Nature · ATK 68 DEF 61
- Asaf AvidanUncommon · Arts · ATK 68 DEF 61
- PenUncommon · Society · ATK 70 DEF 59
Card lists
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Credits
Text : Wikipedia, Law of sines (revision), CC BY-SA 4.0. Photo : Jon Peli Oleaga, CC BY-SA 4.0, Wikimedia Commons.

