nomer 1 - 5 yaa... nomer 5, kalau di search google gabungan v. tabung dan v. kerucut nomer 5 tidak tau caranya

1. diketahui : d = 16 → r = 8 cm
                     s = 17 cm
   ditanya : a. tinggi?
                 b. Volume?
   jawab :
   a. t² = s² - r²
          = 17² - 8²
          = 289 - 64
       t² = 225
       t = √225 = 15 cm
  b. volume = 1/3 x πr² x t
                  = 1/3 x 3,14 x 8 x 8 x 5
                  = 1004,8 cm³

2. Volume I :
     Volume = 1/3πr²xt
                  = 1/3 x 22/7 x 12 x 12 x 28
                  = 4.224 cm³
     volume II :
     Volume = 1/3πr²xt
                 = 1/3 x 22/7 x 6 x 6 x 14
                 = 528 cm³
    volume irisan = 4.224 - 528 = 2.696 cm³

3. volume = 1/3 luas alas x t
    462 = 1/3 x 22/7 x 7 x 7 x t
    462 = 1/3 x 154 x t
    462 = 154/3 x t
        t = 462 x 3/154
        t = 9 cm

4. volume = 1/3 x πr² x t
    154 = 1/3 x 22/7 x r² x 12
    154 = 88/7 x r²
       r² = 154 x 7/88
       r² = 1078/88
       r² = 12,25
       r = √12,25
       r = 3,5

5. volume tabung = πr² x t
                            = 3,14 x 0,5 x 0,5 x 10
                            = 7,85 cm³
    volume kerucut = 1/3 x πr² x t
                             = 1/3 x 3,14 x 0,5 x 0,5 x 2
                             = 1,57/3 = 0,523 (diambil 3 angka dibelakang koma)
    volume pensil = 7,85 + 0,523 = 8, 373 cm³