1. Lp = 2r ( r + t )
= 2 x 3,14 x 9 x ( 9 + 22 )
= 6,28 x 9 x 31
= 6,28 x 279
= 1752,12 ( D )
2. Ls = 2rt
( maaf aku gk tau, aku cuman bisa rumus nya aja )
Semoga Membantu
Maaf Klo Salah
^-^
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1. Lp = 2r ( r + t )
= 2 x 3,14 x 9 x ( 9 + 22 )
= 6,28 x 9 x 31
= 6,28 x 279
= 1752,12 ( D )
2. Ls = 2rt
( maaf aku gk tau, aku cuman bisa rumus nya aja )
Semoga Membantu
Maaf Klo Salah
^-^