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Sagot :

Joelbirung21idn

Answer:

12.  V = [tex]\pi r^{2} h/3[/tex]

  V =( 3.14)(72 cm2)(21 cm)/3

  V = (3.14)(1512 cm3)/3

  V =  4747.68cm3/3

  V = 1582.56 cm3

Answer: C. 1582.56 cm3

13. V = [tex]\pi r^{2} h[/tex]

    V = 3.14 ( 2.9cm)(2.9 cm)(7.1cm)

    V = 3.14 (8.41 cm2)(7.1cm)

    V = 3.14 (59.71 cm3)

    V = 187.493 cm3

Answer: A. 187.493 cm3

14. V = [tex]\pi r^{2} h[/tex]

 r = d/2

 r = 8m/2

  r = 4m

V = 3.14 ( 4m)(4m)(12m)

    V = 3.14 (16m2)(12m)

    V = 3.14 (192m3)

    V = 602.88m3

Answer: D. 602.88m3

15. V = l x w x h

     V = 52 m x 35m x 1.5m

     V = 2730 m3

Answer: B. 2730m3

pa brainliest at heart naman, hope it helps :)