The Trigonometrical Hexagon

May 19th, 2015
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Have a right triangle with the right angle at the bottom - right and angle 0 at a bottom left. Write cursive S (sin), C (cos), T (tan) around the right triangle.

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MATHEMATICSNUMERATION SYSTEMROMAN SYSTEM (ROMAN NUMERALS)The roman used a system below that we still see in evidence as hours on clocks and dates onbuildings.SYMBOLIVXLCDMVALUE15105010050010000NEFIVETENFIFTYONE HUNDREDFIVE HUNDREDONE THOUSANDThe symbols were written largest to smallest, from left to right. The value of thenumeral was the sum of the values of the individual symbols. Each symbol was used as manyas necessary, with the following exceptions: When the Romans got to 4,9,40,90,400, or900,they used a system of subtraction.1V = 5 11X = 10 1XL = 50 10 = 40XC = 100 10 = 90CD = 500 100 = 400CM = 1000 100 = 900ROUNDING-0FF RULE IS USED IN THE FOLLOWING EXAMPLES1. Look at the single digit just to the right of the digit that is in the place of desiredaccuracy.2. If this digit is 5 or greater, make the digit in the desired place of accuracy one largerand replace all digits to the right with zeros.3. If this digit is less than 5, leave the digit that is in the place of desired accuracy as it isand replace all digits to the right with zeros.Example:1. Round 5749 to the nearest hundred.574957495700^^^PLACE OF DESIREDLOOK AT 1 DIGIT 2 DACCURACYRIGHT;4 IS < 5So, 5749 rounds off to 5700 (to the nearest hundred).LEAVE 7 & FILLIN ZEROSADDITIONAddition with whole numbers is indicated either by writing the numbers horizontally witha plus sign (+) between them or by writing the numbers vertical

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