Right Triangle Trig
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
+7
Standards-aligned
Wayground Content
FREE Resource
Student preview
15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is the definition of cosine in a right triangle?
Back
Cosine (cos) of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.
Tags
CCSS.HSG.SRT.C.6
2.
FLASHCARD QUESTION
Front
What is the definition of sine in a right triangle?
Back
Sine (sin) of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.
Tags
CCSS.HSG.SRT.C.6
3.
FLASHCARD QUESTION
Front
What is the definition of tangent in a right triangle?
Back
Tangent (tan) of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
Tags
CCSS.HSG.SRT.C.6
4.
FLASHCARD QUESTION
Front
What does SOH CAH TOA stand for?
Back
SOH: Sine = Opposite/Hypotenuse, CAH: Cosine = Adjacent/Hypotenuse, TOA: Tangent = Opposite/Adjacent.
Tags
CCSS.HSG.SRT.C.8
5.
FLASHCARD QUESTION
Front
If cos X = 28/41, what is the value of sin X?
Back
sin X = √(1 - cos²X) = √(1 - (28/41)²) = 33/41.
Tags
CCSS.HSG.SRT.C.7
6.
FLASHCARD QUESTION
Front
How do you find the angle using cosine?
Back
Use the inverse cosine function: X = cos⁻¹(adjacency/hypotenuse).
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
7.
FLASHCARD QUESTION
Front
What is the relationship between sine and cosine?
Back
sin²X + cos²X = 1 for any angle X.
Tags
CCSS.HSF.TF.C.8
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