Topic — Geometria euclidea.
Featured in chapters
08
Linked atoms
43 linked atoms.
08 Fondamenti di geometria euclidea
- A scheme for proofs
- Angles formed by parallel lines and a transversal
- Applying the scheme
- Base angles of the isosceles triangle
- Bisector, median and altitude
- Classification of quadrilaterals
- Congruence criteria for right triangles
- Congruent opposite angles and parallelogram
- Definitions and properties
- Diagonals that bisect each other and parallelogram
- Distance of a point from a line
- Euclid and the Elements
- Lemma, theorem and corollary
- Perpendicular bisector of a segment
- Problem — Congruence with the altitudes
- Proof by contradiction
- Proofs using parallelism
- Sum of the interior angles of a polygon
- Sum of the interior angles of a triangle
- Thales of Miletus and the height of the pyramid
- The converse theorem
- The exterior angle as the sum of the non-adjacent interior angles
- The exterior angle is greater than the non-adjacent interior angles
- The first congruence criterion
- The five most frequent moves
- The hinge theorem
- The intercept theorem
- The logical steps of a proof
- The parallelogram
- The perpendicular bisector as a locus
- The rectangle
- The rhombus and the bisecting diagonal
- The rhombus and the perpendicular diagonals
- The second congruence criterion
- The syllogism
- The third congruence criterion
- The trapezium
- Theory, postulates and theorems
- Vertically opposite angles
- What a locus is
- What a quadrilateral is
- What a theorem is
- What an exterior angle is