Найти книгу: "Pythagorean Triangles"

The Pythagorean Theorem is one of the fundamental theorems of elementary geometry, and Pythagorean triangles — right triangles whose sides are natural numbers — have been studied by mathematicians since antiquity. In this classic text, a brilliant Polish mathematician explores the intriguing mathematical relationships in such triangles.Starting with «primitive» Pythagorean triangles, the text examines triangles with sides less than 100, triangles with two sides that are successive numbers, divisibility of one of the sides by 3 or by 5, the values of the sides of triangles, triangles with the same arm or the same hypotenuse, triangles with the same perimeter, and triangles with the same area. Additional topics include the radii of circles inscribed in Pythagorean triangles, triangles in which one or more sides are squares, triangles with natural sides and natural areas, triangles in which the hypotenuse and the sum of the arms are squares, representation of triangles with the help of the points of a plane, right triangles whose sides are reciprocals of natural numbers, and cuboids with edges and diagonals expressed by natural numbers.

Learn how to make visually striking projects featuring 60-degree shapes, including hexagons, diamonds, and equilateral triangles. This comprehensive guide offers progressive skill-building instruction, plus problem-solving tips for common pitfalls. Move from confident beginner to the next level and create the blocks you want! Create an original design using the library of more than 80 blocks or try out the shapes in the small projects included Trace your own templates using the full-sized patterns provided or use commercial acrylic template sets for rotary cutting pieces Master set-in seams and find a wide range of possibilities for 60-degree shapes

Trying to teach shapes to your little ones? This is the best book to start! Filled with attractive images featuring different shapes, this is a valuable resource that your child will love to have! There are also examples of commonly-seen objects to nail the information in. Choose to have a copy of this book today!