Tlg bantu jawab ya besok di kumpulin aku kasih poin 55 ​

Pembahasan

1. v = π . r² . t

mencari t

b² = c² – a²

b² = 10² – 8²

b² = 100 – 64

b² = 36

b = √36

b = 6

v = π . r² . t . ⅓

v = 314/100 . 6 . 8 . 8 . ⅓

= 401,92 cm³

2. v = π . r² . t . ⅓

v = 22/7 . 7 . 7 . ⅓ . 24

v = 1.232 cm³

3. v = π . r² . t . ⅓

v = 314/100 . 18 . 18 . 30 . ⅓

v = 10.173,6

4. v = π . r² . t . ⅓

a²= c² – b²

a² = 17² – 15²

a² = 289 – 225

a² = 64

a = √64

a = 8

v = ⅓ . π . r² . t

v = ⅓ . 314/100 . 8 . 8 . 15

v = 1.004,8 cm³

5. v = π . r² . t . ⅓

v = 314/100 . 20 . 20 . 21 . ⅓

v = 8.792 cm³

6. v = π . r² . t . ⅓

b² = c² – a²

b² = 5² – 3²

b² = 25 – 9

b = √16

b = 4

v = π . r² . t . ⅓

v = 314/100 . 3 . 3 . 4 . ⅓

v = 37,68 cm³

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