1001 Inventions that Changed the World

1001 Inventions that Changed the World

Matematika tolong kak bentar lg deadline ​

tolong kak bentar lg deadline ​

Penjelasan dengan langkah-langkah:

4) Luas selimut = 2πrt

r = 220/(2 x 22/7 x 5)

r = 220/220 x 7

r = 7

Luas tutup tabung = 22/7 x 7²

= 154 cm²

5) Luas seng = 2 x 22/7 x 14 x (14 + 35)

= 88 x 49

= 4.312 cm²

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