Trig Flashcard: Special Right Triangles and Unit Circle

Flashcard
•
Mathematics
•
10th Grade
•
Hard
+1
Standards-aligned
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16 questions
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1.
FLASHCARD QUESTION
Front
What is a 30-60-90 triangle?
Back
A special right triangle where the angles are 30 degrees, 60 degrees, and 90 degrees. The sides are in the ratio 1:√3:2.
Tags
CCSS.8.G.B.8
2.
FLASHCARD QUESTION
Front
What is a 45-45-90 triangle?
Back
A special right triangle where the angles are both 45 degrees and the sides are in the ratio 1:1:√2.
Tags
CCSS.8.G.B.8
3.
FLASHCARD QUESTION
Front
How do you find the length of the long leg in a 30-60-90 triangle?
Back
Multiply the length of the short leg by √3.
Tags
CCSS.8.G.B.8
4.
FLASHCARD QUESTION
Front
How do you find the length of the short leg in a 30-60-90 triangle?
Back
Divide the length of the long leg by √3.
Tags
CCSS.8.G.B.8
5.
FLASHCARD QUESTION
Front
What is the value of sin(θ) in the first quadrant?
Back
sin(θ) is positive in the first quadrant.
Tags
CCSS.HSF.TF.A.2
6.
FLASHCARD QUESTION
Front
What is the value of cos(θ) in the second quadrant?
Back
cos(θ) is negative in the second quadrant.
Tags
CCSS.HSF.TF.A.2
7.
FLASHCARD QUESTION
Front
What is the value of tan(θ) in the third quadrant?
Back
tan(θ) is positive in the third quadrant.
Tags
CCSS.HSF.TF.A.2
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