Download Touch Pythagoras 1.1.5 APK for Android

Name: touch-pythagoras.apk
ID: nummolt.touch.pythagoras
Version: 1.1.5
Size: 0.2 Mb

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The Pythagorean Theorem Interactive: a^2 + b^2 = c^2 App : change the lengths of the legs (dragging). change the length of the hypotenuse with two fingers. zoom (pinch zoom) and rotate the figure (dragging). There are 6 ways to view the Pythagorean theorem. - Unit surfaces. - Two equivalent square containing the same surface. - The square for each leg in the square of the hypotenuse (Euclid) - Pingi - Dudeney proof. - Da Vinci. - Bhaskara reasoning. Change the precision of the lengths. (In the contextual menu) This application is also a small laboratory to investigate about the Pythagorean Theorem: For example, you can experiment easily, looking for the exact solutions of the Pythagorean Theorem: 3² + 4² = 5² is not the only exact solution: Below 21, there are 3 primitive triples: 3² + 4² = 5² 5² + 12² = 13² 6² + 8² = 10² (Not a true primitive result: Multiple of 3,4,5) 8² + 15² = 17² 9² + 12² = 15² (Not a true primitive result: Multiple of 3,4,5) 12² + 16² = 20² (Not a true primitive result: Multiple of 3,4,5) Likewise it is also possible to find the solutions below 31 (11 solutions in all: but only 5 primitives) Or solutions below 101 (52 solutions in all: but only 16 primitives) More primitive pythagorean triples: 9² + 40² = 41² 11² + 60² = 61² 12² + 35² = 37² 13² + 84² = 85² 15² + 112² = 113² 16² + 63² = 65² 17² + 144² = 145² 19² + 180² = 181² 20² + 21² = 29² 20² + 99² = 101² 24² + 143² = 145² 28² + 45² = 53² 33² + 56² = 65² 36² + 77² = 85² 39² + 80² = 89² 44² + 117² = 125² 48² + 55² = 73² 51² + 140² = 149² 52² + 165² = 173² 57² + 176² = 185² 60² + 91² = 109² 65² + 72² = 97² 85² + 132² = 157² 88² + 105² = 137² 95² + 168² = 193² 104² + 153² = 185² 119² + 120² = 169² 133² + 156² = 205² 140² + 171² = 221² More about this: Pythagorean triples: http://en.wikipedia.org/wiki/Pythagorean_triples Touch Math Apps: http://www.nummolt.com MathTools classification: http://mathforum.org/mathtools/tool/206418/ M 4 Triangles M 6 All previous and: Geometry in the plane, Pythagorean theorem M 7 All previous and: Quadrilateral properties Geometry All previous Right Triangles, Pythagorean theorem, Trigonometry Algebra Exponents Algebra II General Trigonometry For more information about Pythagorean Theorem: Alexander Bogomolny: Cut the knot: #112 proofs of the Pythagorean Theorem: http://www.cut-the-knot.org/pythagoras/

What's new in Touch Pythagoras 1.1.5

1.1.5 Code 9 - minor improvement in contextual menu 1.1.4 Code 8 - new contextual menu 1.1.3 Code 7 - Minor improvement in Euclid proof

Touch Pythagoras | 15 Reviewers | 2014/14/4 12:00:00 SA | Rating: 3.9