tolong kak hrs skrngg
Penjelasan dengan langkah-langkah:
1. K = 22/7 x 14 + 2 x 28
= 44 + 56
= 100 cm
2. K = ¼ x 3,14 x 2 x 10 + 2 x 10
= 15,7 + 20
= 35,7 cm
3. K = 22/7 x 21/2 + 3 x 21
= 33 + 63
= 96 cm
4. K = 3,14 x 2 x 10 = 62,8 cm
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