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Fibonacci Sequence

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  Fibonacci Sequence The Fibonacci Sequence is the series of numbers: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ... The next number is found by adding up the two numbers before it: the 2 is found by adding the two numbers before it (1+1), the 3 is found by adding the two numbers before it (1+2), the 5 is (2+3), and so on! Example: the next number in the sequence above is 21+34 =   55 It is that simple! Here is a longer list: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393, 196418, 317811, ... Makes A Spiral When we make squares with those widths, we get a nice spiral: Do you see how the squares fit neatly together? For example 5 and 8 make 13, 8 and 13 make 21, and so on. This spiral is found in nature! See:  Nature, The Golden Ratio, and Fibonacci The Rule The Fibonacci Sequence can be written as a "Rule" (see  Sequences and Series ). First, the terms are numbered from 0 onwards like this: n ...
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FACT OF INDIAN COINS

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  FACTS OF INDIAN COINS Coins of the Indian rupee (INR) were first minted in 1950. In India, the Finance Ministry is responsible for the minting of coins and printing of one rupee notes. The India Government Mint operates four mints in the country for the production of coins: Currently,we are using One Rupee, Two Rupees, Five Rupees, Ten Rupees and Twenty Rupees Do you think why government of India reducing the size coins? See this one rupee coin. First one was introduced in 2001 and second in 2012.   Every coin has two values One is called the  "Face Value" of the coin and the second value is its "Metallic Value" . Face Value of Coin: It means that "amount written on the coin”. See the above picture, If 1 rupee is written on any coin, it would be called its face value. Metallic value of coin:  It means that, the monetary value of the metal used in the formation of the coin. If a coi...
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CONGRUENT TRIANGLE

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  CONGRUENT TRIANGLE CONGRUENT FIGURES:                                                             Congruent figures are exactly the same in size and shapes. In other words, shapes are congruent if one fits exactly over the other. EXAMPLE: CONGRUENT TRIANGLE: Determining congruence Sufficient evidence for congruence between two triangles in  Euclidean space  can be shown through the following comparisons: SAS  (side-angle-side): If two pairs of sides of two triangles are equal in length, and the included angles are equal in measurement, then the triangles are congruent. SSS  (side-side-side): If three pairs of sides of two triangles are equal in length, then the triangles are congruent. ASA  (angle-side-angle): If two pairs of angles of two triangles are equal in measurement, and the included sides are e...
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