Penjelasan dengan langkah-langkah:
Lp bola :
= 4 × π × r²
= 4 × 22/7 × 7²
= 4 × 154
= 616
Lp tabung :
= 2 × π × r ( r + t )
= 2 × 22/7 × 7 ( 7 + 9 )
= 2 × 22 ( 16 )
= 44 × 16
= 704
Lp gabungan :
= 616 + 704
= 1.320
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Penjelasan dengan langkah-langkah:
Pembahasan :
Lp bola :
= 4 × π × r²
= 4 × 22/7 × 7²
= 4 × 154
= 616
Lp tabung :
= 2 × π × r ( r + t )
= 2 × 22/7 × 7 ( 7 + 9 )
= 2 × 22 ( 16 )
= 44 × 16
= 704
Lp gabungan :
= 616 + 704
= 1.320