
Trig Ratios(12/4-5/24)
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of sine in a right triangle?
Back
Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse (Opp/Hyp).
2.
FLASHCARD QUESTION
Front
What is the definition of cosine in a right triangle?
Back
Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse (Adj/Hyp).
3.
FLASHCARD QUESTION
Front
What is the definition of tangent in a right triangle?
Back
Tangent (tan) is the ratio of the length of the opposite side to the length of the adjacent side (Opp/Adj).
4.
FLASHCARD QUESTION
Front
What is the formula for finding sine of an angle A?
Back
Sin(A) = Opposite side / Hypotenuse.
5.
FLASHCARD QUESTION
Front
What is the formula for finding cosine of an angle A?
Back
Cos(A) = Adjacent side / Hypotenuse.
6.
FLASHCARD QUESTION
Front
What is the formula for finding tangent of an angle A?
Back
Tan(A) = Opposite side / Adjacent side.
7.
FLASHCARD QUESTION
Front
If sinZ = 5/13, what is the value of cosZ?
Back
Using the Pythagorean identity: cosZ = √(1 - sin²Z) = √(1 - (5/13)²) = 12/13.
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