Geometry - Chapter 8 (trig) flashcard
Flashcard
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of the adjacent side in a right triangle?
Back
The adjacent side is the side next to the angle of interest in a right triangle.
2.
FLASHCARD QUESTION
Front
What does SOH-CAH-TOA stand for?
Back
SOH-CAH-TOA is a mnemonic for remembering the definitions of sine, cosine, and tangent in a right triangle: Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent = Opposite/Adjacent.
3.
FLASHCARD QUESTION
Front
If the length of the adjacent side is 8 and the hypotenuse is 10, what is the cosine of the angle?
Back
Cosine = Adjacent/Hypotenuse = 8/10 = 0.8.
4.
FLASHCARD QUESTION
Front
What is the formula to find the length of a side in a right triangle using the Pythagorean theorem?
Back
The Pythagorean theorem states that a² + b² = c², where c is the hypotenuse and a and b are the other two sides.
5.
FLASHCARD QUESTION
Front
How do you find the length of the opposite side if you know the angle and the hypotenuse?
Back
Use the sine function: Opposite = Hypotenuse × sin(angle).
6.
FLASHCARD QUESTION
Front
What is the value of sin(30°)?
Back
sin(30°) = 0.5.
7.
FLASHCARD QUESTION
Front
What is the value of cos(60°)?
Back
cos(60°) = 0.5.
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