Introduction to Trigonometry and Law of Sines and Cosines
Authored by Anthony Clark
Mathematics
12th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following formulas shows the Law of Cosines?
c2 = a2 + b2 - 4ac + cosA
c2 = a2 - b2 - 2abcosC
c2 = a2 + b2 - 2abcosC
(cos A)/a = (cos B)/b
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which Law would you use?
Law of Sines
Law of Cosines
Law of the Jungle
Law of Gravity
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the length of side x?
130 cm
112 cm
150 cm
105 cm
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
To approximate the length of a marsh, a surveyor walks 425 meters from point A to point B. Then the surveyor turns 65º and walks 300 meters to point C. Approximate the length AC of the marsh.
250
615
:)
Not me
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which Law would you use?
Law of Sines
Law of Cosines
Law of the Jungle
Law of Gravity
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
6.
MATH RESPONSE QUESTION
1 min • 1 pt
Use law of Sines to find side c.
Round your answer to the nearest hundredth
Mathematical Equivalence
OFF
Tags
CCSS.HSG.SRT.D.10
CCSS.HSG.SRT.D.11
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
cos B = ? Remember: Cosine ratio is adjacent/hypotenuse
12/13
12/5
5/13
5/12
Tags
CCSS.HSG.SRT.C.6
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