| History | Equations | Definitions |
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Who first discovered trigonometry?
Hipparchus (He was the first to discover and construct a table of values to form a trigonometric function.)
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True or false, to solve for cosine you divide the opposite side by the adjacent side.
false, cosine is adjacent/hypotenuse
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What does SOH/CAH/TOA stand for?
triangle
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Approximately when was trigonometry invented?
The year, 1250
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Find the angle of elevation to the sun when a 12.5m tall pole casts an 18m long shadow.
x=34.8 degrees
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"Trigo" is the Greek word for what? What does the greek word "Metry" mean?
Measure
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How is trigonometry used today compared to before in the early ages? (hint: There are multiple answers therefore answers may vary)
The prime use of Trigonometry in ancient times was mainly used for astrology and mapmaking. Today, trigonometry can be used in everyday life.
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True or false, this style and method of "trigonometry (SOH/CAH/TOA)" has been used since way back into the 2nd millennium BC in Egyptian and Babylonian mathematics.
True
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What are the 6 main functions of trigonometry?
Sine, cosine, tangent, cotangent, secant, cosecant
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Which culture of mathematics started to use all six functions of trigonometry? When did this culture start using the functions?
Islamic mathematics in the middle ages
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Billy is a block away from a skyscraper that is 800 ft tall. His friend, Jesse, is between both him and the skyscraper. The angle of elevation from Billy's position to the tip of the skyscraper is 42 degrees. The angle of elevation from the perspective of his friend Jesse is 71 degrees. How far is Billy from Jesse?
613ft
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When do you use the "inverse" button on your calculator?
When finding the degree of the triangle
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Who created the trigonometry number system based on 60?
The Babylonians
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Logan is standing 30 ft from a pole. He observes a bird at the top of the pole at an angle of elevation of 30 degrees. On the other side of the tower, Olivia observes the same bird at an angle of elevation at 40 degrees. How far is Logan from the pole? Solve to the nearest tenth.
20.6ft
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What is a trigonometric ratio?
Trigonometric Ratios are the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle. The ratios of sides of a right-angled triangle with respect to any of its acute angles are known as the trigonometric ratios of that particular angle. (byjus.com)
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