SohCahToa/Law of Sines Review
Flashcard
•
Mathematics
•
10th Grade
•
Hard
+5
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What does SohCahToa stand for?
Back
SohCahToa 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.
Tags
CCSS.HSG.SRT.C.6
2.
FLASHCARD QUESTION
Front
How do you calculate the sine of an angle in a right triangle?
Back
Sine of an angle = Length of the opposite side / Length of the hypotenuse.
Tags
CCSS.HSG.SRT.C.6
3.
FLASHCARD QUESTION
Front
How do you calculate the cosine of an angle in a right triangle?
Back
Cosine of an angle = Length of the adjacent side / Length of the hypotenuse.
Tags
CCSS.HSG.SRT.C.6
4.
FLASHCARD QUESTION
Front
How do you calculate the tangent of an angle in a right triangle?
Back
Tangent of an angle = Length of the opposite side / Length of the adjacent side.
Tags
CCSS.HSG.SRT.C.6
5.
FLASHCARD QUESTION
Front
What is the Law of Sines?
Back
The Law of Sines states that the ratio of the length of a side of a triangle to the sine of its opposite angle is constant for all three sides: a/sin(A) = b/sin(B) = c/sin(C).
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
6.
FLASHCARD QUESTION
Front
How can you find an unknown angle using the Law of Sines?
Back
To find an unknown angle, rearrange the Law of Sines: sin(A) = a * sin(B) / b, then use the inverse sine function.
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
7.
FLASHCARD QUESTION
Front
What is the relationship between the angles and sides in a triangle?
Back
In any triangle, the larger the angle, the longer the opposite side; conversely, the smaller the angle, the shorter the opposite side.
Tags
CCSS.HSG.CO.C.10
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