Two triangular pyramids are similar the volume of the large pyramids is 729cm and the volume of the smaller pyramids is 64 cm. If the perimeter of the base of the similar pyramids is 8 cm what is the perimeter of the base of the larger pyramids

18 cm for larger base

Step-by-step explanation:

For similar figures, there is a formula regarding volume, area, and length

Large: small = y: x for length

large: small = (y^3) / (x^3) for volume

729 cm cube / 64 cm cube = large : small

9: 4 = large: small by length

large / 8cm = 9 / 4

large = 8 * (9/4) = 2*9 = 18 cm