Roboguru

S e b u a h space k e r u c u t space m e m p u n y a i space v o l u m e space 27 space c m cubed. space J i k a space d i a m e t e r space a l a s space k e r u c u t space d i p e r b e s a r space 2 space k a l i space d a n space t i n g g i n y a space d i p e r b e s a r space 3 space k a l i comma space v o l u m e space k e r u c u t space y a n g space b a r u space a d a l a h...

  1. 162 space c m cubed

  2. 324 space c m cubed

  3. 486 space c m cubed

  4. 972 space c m cubed

Jawaban:

D i k e t a h u i space V subscript 1 equals 27 space c m cubed  space space space space space space space space space space space space space space space space space space space d subscript 2 equals 2 d subscript 1 space m a k a space r subscript 2 equals 2 r subscript 1  space space space space space space space space space space space space space space space space space space space t subscript 2 equals 3 t subscript 1  m a k a colon  V subscript 2 over V subscript 1 equals fraction numerator begin display style 1 third end style straight pi r subscript 2 t subscript 2 over denominator 1 third straight pi r subscript 1 t subscript 1 end fraction  V subscript 2 over 27 equals fraction numerator begin display style up diagonal strike 1 third straight pi end strike left parenthesis 2 r subscript 1 right parenthesis squared left parenthesis 3 up diagonal strike t subscript 1 end strike right parenthesis end style over denominator up diagonal strike 1 third straight pi end strike r subscript 1 squared up diagonal strike t subscript 1 end strike end fraction  V subscript 2 over 27 equals fraction numerator begin display style 4 up diagonal strike r subscript 1 squared end strike cross times 3 end style over denominator up diagonal strike r subscript 1 squared end strike end fraction  V subscript 2 equals 12 cross times 27 equals 324 space c m cubed

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