Como se halla el area total de una piramide
Asked By Admin @ 27/10/22 & Viewed By 87 Persons
Calcula el area total de una piramide regular cuya base es un cuadrado de 18cm de lado y la altura de una lateral es 40cm
Asked By Admin @ 27/10/22 & Viewed By 87 Persons
Calcula el area total de una piramide regular cuya base es un cuadrado de 18cm de lado y la altura de una lateral es 40cm
Pirámide cuadrangular regular.
El área de la base es el área del cuadrado:
Area base = Lado² = 18² = 324 cm²
Area lateral. Las caras laterales son triángulos isósceles cuya base ya conocemos por coincidir con el lado del cuadrado de la base y la altura también nos la dan, así que acudiendo a la fórmula del triang.
Area triangulo = Base × Altura / 2 = 18 × 40 / 2 = 360 cm²
... que multiplico por 4 caras que tiene la pirámide
360 × 4 = 1440 cm²
Area total = Area base + Area lateral = 324 + 1440 = 1.764 cm²
Saludos.
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