Congruency, Similarity, Right Triangles
... definition of congruence in terms of rigid motions, the congruence of two triangles; uses algebraic ...
... definition of congruence in terms of rigid motions, the congruence of two triangles; uses algebraic ...
T. Sundara Row`s Geometric exercises in paper folding
... shown how they can be marked on paper by paperThe history of some of the curves is given, folding. are also explained. ...
... shown how they can be marked on paper by paperThe history of some of the curves is given, folding. are also explained. ...
GEOMETRY General: Angles:
... products are equal. (also Doubles of equal quantities are equal.) If equal quantities are divided by equal nonzero quantities, the quotients are equal. (also Halves of equal quantities are equal.) A quantity may be substituted for its equal in any expression. The whole is equal to the sum of its par ...
... products are equal. (also Doubles of equal quantities are equal.) If equal quantities are divided by equal nonzero quantities, the quotients are equal. (also Halves of equal quantities are equal.) A quantity may be substituted for its equal in any expression. The whole is equal to the sum of its par ...
Technical drawing
Technical drawing, also known as drafting or draughting, is the act and discipline of composing drawings that visually communicate how something functions or is to be constructed.Technical drawing is essential for communicating ideas in industry and engineering.To make the drawings easier to understand, people use familiar symbols, perspectives, units of measurement, notation systems, visual styles, and page layout. Together, such conventions constitute a visual language, and help to ensure that the drawing is unambiguous and relatively easy to understand. These drafting conventions are condensed into internationally accepted standards and specifications that transcend the barrier of language making technical drawings a universal means of communicating complex mechanical concepts.This need for precise communication in the preparation of a functional document distinguishes technical drawing from the expressive drawing of the visual arts. Artistic drawings are subjectively interpreted; their meanings are multiply determined. Technical drawings are understood to have one intended meaning.A drafter, draftsperson, or draughtsman is a person who makes a drawing (technical or expressive). A professional drafter who makes technical drawings is sometimes called a drafting technician. Professional drafting is a desirable and necessary function in the design and manufacture of complex mechanical components and machines. Professional draftspersons bridge the gap between engineers and manufacturers, and contribute experience and technical expertise to the design process.