Razonamiento matemático

EJERCICIOS DE CONTEO DE TRIANGULOS.
Encierra en un circulo la respuesta correcta a cada uno de los siguientes ejercicios de conteo:
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INTRODUCCIÓN.
La música es la expresión del alma, es el sentimiento hecho sonido, porque cada situación oacontecimiento se puede, en determinado momento, entender y acompañar con música; es el lenguaje sin palabras. Solo sonidos que pueden hacer vibrar corazones de emoción, de alegría, y algunas veces detristeza, cuando alguien llega o se va. Es más fácil sentir y reproducir la música que explicarla o definirla. Todos entendemos qué es la música, pero ¿cuántos pueden poner en palabras cuáles son suscaracterísticas esenciales o aquello que le da sentido?

DEFINICIÓN DE MUSICA
El término música tiene su origen del latín “musica” que a su vez deriva del término griego “mousike” y que hacía referenciaa la educación del espíritu la cual era colocada bajo la advocación de las musas de las artes.
Puede decirse que la música es el arte que consiste en dotar a los sonidos y los silencios de una ciertaorganización. El resultado de este orden resulta lógico, coherente y agradable al oído. El concepto de música ha ido evolucionando desde su origen en la antigua Grecia, en que se reunía sindistinción a la poesía, la música y la danza como arte unitario. Desde hace varias décadas se ha vuelto más compleja la definición de qué es y qué no es la música, ya que destacados compositores, en el marco...