Jawaban:
8. B
9. C
10. A
11. B
Penjelasan dengan langkah-langkah:
9. cari menggunakan phytagoras
c² = a²+b²
= 3²+4²
= 9+16
= 25
c = akar 25
= 5
10. L = s×s + p×l + 2×1/2×a×t
= 8×8 + 8×4 + 2×1/2×3×4
= 64 + 32 + 12
= 108
11. K = 8+8+8+8+3+5+8+5+3
= 48
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Jawaban:
8. B
9. C
10. A
11. B
Penjelasan dengan langkah-langkah:
9. cari menggunakan phytagoras
c² = a²+b²
= 3²+4²
= 9+16
= 25
c = akar 25
= 5
10. L = s×s + p×l + 2×1/2×a×t
= 8×8 + 8×4 + 2×1/2×3×4
= 64 + 32 + 12
= 108
11. K = 8+8+8+8+3+5+8+5+3
= 48