The volumes of two similar square pyramids is 128 and 250 meters respectively. The side length of the smaller pyramid is 8 meters. Determine the height of the larger pyramid.
A)7.5 m
B)6 m
C)48 m
D)60 m

Answer :

Answer:

height of the larger pyramid =   7.5  m

Step-by-step explanation:

given data

volumes of pyramids = 128 meters

volumes of pyramids = 250 meters

side length of the smaller pyramid = 8 meters

solution

we know that volume of square pyramids that is express as

volume of square pyramids = [tex]\frac{a^3h}{3}[/tex]    ..............1

for smaller pyramids put here value and get height

128 = [tex]\frac{8^2\times h}{3}[/tex]

height of small pyramid h = 6

so two similar square pyramids ratio with height is express as

[tex]\frac{128}{250} = \frac{(6)^3}{x^3}[/tex]

x =   7.5  m

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