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Triángulos: ejercicios de perímetros, áreas, ángulos, semejanza,...

Ejercicios para practicar con Teorema de Pitágoras, triángulos rectángulos, semejanza de triángulos, además de perímetros, áreas, ángulos, tipo ...

Ejercicios de Matemáticas: ángulos

Ejercicios de ángulos determinados por dos líneas que se cruzan, por líneas que cruzan líneas paralelas, ángulos de triángulos y medidas de ángulos c ...

El aula multicultural: recursos de geometría.

"Materiales muy visuales para trabajar en la asignatura de Matemáticas de 1º de E.S.O. Su objetivo principal es reconocer y describir los elementos y propiedades característico ...

Types of angles

"There are four types of angles: acute, right, obtuse, and straight. Each name indicates a specific range of degree measurements. Congruent angles have equivalent measures. Adjacent angles share a v ...

Triangle Similarity

"There are four triangle congruence shortcuts: SSS, SAS, ASA, and AAS. We have triangle similarity if (1) two pairs of angles are congruent (AA) (2) two pairs of sides are proportional and the includ ...

Triangle Angle Sum

"The sum of the three angles in any triangle sum to 180 degrees. The importance of this fact in Geometry cannot be emphasized enough. The triangle angle sum theorem is used in almost every missing a ...

Inscribed Angles

"Inscribed angles are angles whose vertices are on a circle and that intersect an arc on the circle. The measure of an inscribed angle is half of the measure of the intercepted arc and half the measur ...

Sum of Polygon Angles

"The sum of the angles in any polygon is equal to the number of sides in the polygon minus two, all multiplied by 180 degrees. Sum of polygon angles problems may ask you to determine the sum of angles ...

Solving Trigonometric Equations

"When solving trigonometric equations, we find all the angles that make the equation true. If there is no interval given, use periodicity to show the infinite number of solutions. Two ways to visuali ...

Sine Addition Formula

"Starting with the cofunction identities, the sine addition formula is derived by applying the cosine difference formula. There are two main differences from the cosine formula: (1) the sine addition ...

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