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Find the volume of a pyramid with a square base, where the perimeter of the base is 13, point, 6, cm13.6 cm and the height of the pyramid is 15, cm15 cm. Round your answer to the nearest tenth of a cubic centimeter.

Question

Find the volume of a pyramid with a square base, where the perimeter of the base is 13, point, 6, cm13.6 cm and the height of the pyramid is 15, cm15 cm. Round your answer to the nearest tenth of a cubic centimeter.

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Solution

Para encontrar el volumen de una pirámide con base cuadrada, primero necesitamos determinar el área de la base y luego usar la fórmula del volumen de una pirámide.

  1. Determinar la longitud del lado de la base cuadrada: La base es un cuadrado y su perímetro es 13.6 cm. El perímetro de un cuadrado es la suma de las longitudes de sus cuatro lados. Perıˊmetro=4×lado \text{Perímetro} = 4 \times \text{lado} Entonces, podemos encontrar la longitud del lado dividiendo el perímetro entre 4: lado=13.6cm4=3.4cm \text{lado} = \frac{13.6 \, \text{cm}}{4} = 3.4 \, \text{cm}

  2. Calcular el área de la base: El área de un cuadrado se calcula elevando al cuadrado la longitud de uno de sus lados: Aˊrea de la base=(lado)2=(3.4cm)2=11.56cm2 \text{Área de la base} = (\text{lado})^2 = (3.4 \, \text{cm})^2 = 11.56 \, \text{cm}^2

  3. Usar la fórmula del volumen de una pirámide: La fórmula para el volumen de una pirámide es: V=13×Aˊrea de la base×altura V = \frac{1}{3} \times \text{Área de la base} \times \text{altura} Dado que la altura de la pirámide es 15 cm, sustituimos los valores: V=13×11.56cm2×15cm V = \frac{1}{3} \times 11.56 \, \text{cm}^2 \times 15 \, \text{cm}

  4. Realizar los cálculos: V=13×11.56×15=13×173.4=57.8cm3 V = \frac{1}{3} \times 11.56 \times 15 = \frac{1}{3} \times 173.4 = 57.8 \, \text{cm}^3

Por lo tanto, el volumen de la pirámide es aproximadamente 57.8 cm³, redondeado a la décima más cercana.

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