Jawaban:
11. A 252 cm²
13.B. 36 buah
Penjelasan dengan langkah-langkah:
11. L persegi = 12 × 12 = 144
L 2 segitiga= 2 × ½ × 9 × 12
= 108
L total = 144 + 108
= 252 (A)
13. keliling = (20×3)+(30×2)+(24×2)+60
= 60 + 60 + 48 + 60
= 228
228-12 = 216
216 : 6 = 36 (B)
Mohon koreksi jika ada kesalahan
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Jawaban:
11. A 252 cm²
13.B. 36 buah
Penjelasan dengan langkah-langkah:
11. L persegi = 12 × 12 = 144
L 2 segitiga= 2 × ½ × 9 × 12
= 108
L total = 144 + 108
= 252 (A)
13. keliling = (20×3)+(30×2)+(24×2)+60
= 60 + 60 + 48 + 60
= 228
228-12 = 216
216 : 6 = 36 (B)
Mohon koreksi jika ada kesalahan