Jawaban:
15. R = 31,5 × 2 D = 63
rumus = πD
= 22/7 × 63 = 22 × 9
= 198 × 8 = 1.584cm(D)
16. LB. D = 28 ÷ 2. R = 14
= 22/7 × 14 × 14 = 22 × 2 × 14
= 616 ÷ 2 = 308cm
LK. D = 14 ÷ 2 R = 7
= 22/7 × 7 × 7 = 22 × 7
= 154 ÷ 2 = 77cm
LA. R = 14
= 22 × 2 × 14 = 616 ÷ 2 = 308cm
308 - 77 = 231cm² (A)
yang diarsir
Penjelasan dengan langkah-langkah:
maaf kalo salah
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Jawaban:
15. R = 31,5 × 2 D = 63
rumus = πD
= 22/7 × 63 = 22 × 9
= 198 × 8 = 1.584cm(D)
16. LB. D = 28 ÷ 2. R = 14
= 22/7 × 14 × 14 = 22 × 2 × 14
= 616 ÷ 2 = 308cm
LK. D = 14 ÷ 2 R = 7
= 22/7 × 7 × 7 = 22 × 7
= 154 ÷ 2 = 77cm
LA. R = 14
= 22 × 2 × 14 = 616 ÷ 2 = 308cm
308 - 77 = 231cm² (A)
yang diarsir
Penjelasan dengan langkah-langkah:
maaf kalo salah