## Elementary Trigonometry |

### From inside the book

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Page 21

... angle be given , to find its circular measure . Let the

... angle be given , to find its circular measure . Let the

**given angle contain**D degrees . 1 1o = of two right angles = 180 1 180 π of π units of circular measure Π = 3 units of circular measure ; 180 Dπ D ° = units of circular measure ... Page 22

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**angle**be**given**to find the number of degrees which it**contains**. Let be the**given**circular measure . 1 1 ° of two right**angles**= = π 1 π of 180 degrees 180 π degrees ; 0.180 1 = degrees . π Hence we obtain the following rule : If an ... Page 23

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**angle containing**G grades = G. π 200 200 number of grades in the**angle**whose ...**give**a set of Miscellaneous Examples to illustrate the principles explained ...**has**measures in the ratio 8 to 5 ; one unit is 2o , what is the ... Page 24

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**given angle**be 39 ° . 5 ′ . 33 " , 5 ' . 33 " = 333 ′′ . Then since 1o ...**angle**to be divided into 100 equal parts , each of which parts is called a ...**contains**. Grades , minutes and seconds are marked respectively by the ... Page v

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**given angle contain**D degrees . 1 1 degree = of a right angle ; 90 D .. D degrees = 90 of a right angle D of 100 grades 90 100 D = grades 90 10D = grades . 9 Hence we obtain the following rule : If an angle be expressed in degrees ...### Other editions - View all

### Common terms and phrases

angle AOP angle be expressed angle EQP angle whose circular Arithmetical Progression Cambridge centre circle circular measure circumference College List convert the measure cos² cos³ cosec cosine Crown 8vo Edition equal expressed in degrees feet find the angle find the number following angles formula given angle contain Given find Given log Greek Isocrates John Edwin Sandys John Henry Blunt Let the given logarithm magnitude minutes and seconds multiply the measure negative number of degrees number of grades Pall Mall QP revolves radius regular polygon right angles right-angled triangle School and College Sexagesimal shew sides sin² sin³ sine subtends an angle tan² tan³ tangent Thomas Kerchever Arnold Thucydides triangle ABC Trigonometrical Ratios Trinity College unit of angular unit of circular Waterloo Place π π

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