(15) ◌⑅●
Bantu jawab!!
pake cara jugaa~~
Tercepat dpt BA & Follow
Bantu jawab!!
pake cara jugaa~~
Tercepat dpt BA & Follow
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8.052 dm²
Pembahasan:
Lp = 2πr (r + t)
Lp = 2 × 22/7 × 21 × (21 + 40)
Lp = 2 × 22 × 3 × 61
Lp = 2 × 22 × 183
Lp = 2 × 4.026
Lp = 8.052 dm²