Respuesta :
Answer: Second Option is correct.
Step-by-step explanation:
Since we have given that
Volume of larger pyramid = 729 cm³
Volume of smaller pyramid = 64 cm³
So, Ratio of volume of larger pyramid to volume of smaller pyramid is given by
[tex]\dfrac{729}{64}=\dfrac{9^3}{4^3}[/tex]
So, Ratio of side of larger pyramid to side of smaller pyramid is given by
[tex]\dfrac{9}{4}[/tex]
Now, Perimeter of base of smaller pyramid = 8 cm
So, We need to find the perimeter of larger pyramid.
So, it becomes,
[tex]\dfrac{\text{Side of larger pyramid}}{\text{Side of smaller pyramid}}=\dfrac{\text{Perimeter of larger pyramid}}{\text{Perimeter of smaller pyramid}}\\\\\dfrac{9}{4}=\dfrac{x}{8}\\\\x=\dfrac{9\times 8}{4}=\dfrac{72}{4}=18\ cm[/tex]
Hence, Perimeter of the base of the larger pyramid is 18 cm².
Therefore, Second Option is correct.
Answer:
It's the first option
Step-by-step explanation:
I just answered the question on edge
