thetankix thetankix
  • 23-07-2021
  • Mathematics
contestada

I need Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I need Help class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 24-07-2021

9514 1404 393

Answer:

  • 150.72 cm³
  • 314 cm³
  • 160 cm³
  • 48 cm³

Step-by-step explanation:

Put the given numbers in the relevant formula and do the arithmetic.

right cylinder

   V = πr²h = 3.14(4 cm)²(3 cm) = 3.14×48 cm³ = 150.72 cm³

cone

  V = 1/3πr²h = 1/3(3.14)(5 cm)²(12 cm) = 3.14×100 cm³ = 314 cm³

pyramid of unknown shape

  V = 1/3Bh = 1/3(16 cm²)(30 cm) = 160 cm³

square pyramid

  V = 1/3s²h = 1/3(3 cm)²(16 cm) = 48 cm³

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