Geometry

Geometry building blocks reviews elementary concepts on the subject, including the definition of terms related to shapes like lines, angles, triangles, polygons, and circles. Topics include:

Reasoning, diagonals, angles and parallel lines covers applications of both inductive and deductive reasoning to geometry, as well as the definitions on angles and parallel lines. Topics include:

Constructions covers elementary methods related to perpendicularity, parallelism, bisectors, angles, polygons, circles and centers of a triangle. Topics include:

Triangles covers basic definitions and theorems, including the relationships between sides and angles, as well as the properties of isosceles triangles. Topics include:

多边形覆盖terms and formulas related to common polygon shapes, specially those of quadrilaterals such as: squares, rectangles, trapezoid, rhombus, parallelograms. Topics include:

Circles covers terms and formulas, including central and inscribed angles, and the relationships between tangents, arcs, secants, chords and circumference. Topics include:

Transformations covers the practice of geometric transformations, involving reflections, rotations and translations, among others. Topics include:

Area covers formulas related to common shapes, such as triangles, quadrilaterals, polygons, circles, and the surfaces of some 3D shapes. Topics include:

Pythagorean theorem covers proofs, formulas and applications related to this often used theorem. Topics include:

Volume covers terms and formulas related to 3D shapes, particularly those of prisms and cylinders. Topics include:

Similarity covers how to solve basic proportions, the properties of similarity, similarity shortcuts and the how to use area and volume ratios to find missing information. Topics include:

Basic trigonometry covers the definitions and formulas for the basic trigonometric ratios, as well as the fundamental theorems and some applications Topics include: