tolong kak kakak tolong kak kakak yg benar dan pake CARA kakak kak tolong pakecara
Penjelasan dengan langkah-langkah:
L persegi = p × l = 10×7 = 70cm²
L segitiga = ½×a×t = ½×15×4 = 30cm²
L total = 70cm² + 30cm² = 100cm²
4. 3.500 cc + 3 m³ – 2.900 dm³ = ... liter.
3.500 cc = 3.500 ml = 3.500 : 1.000 = 3,5 liter
3 m³ = 3 kl = 3.000 liter
2.900 dm³ = 2.900 liter
Maka,
3,5 + 3.000 – 2.900 = 3.003,5 – 2.900 = 103,5 liter (B).
5. Luas I = ½ × a × t = ½ × (2,5 + 10 + 2,5) × 4
= 15 × 2 = 30 cm²
Luas II = p × l = 10 × 7 = 70 cm²
Luas Total = Luas I + Luas II = 30 cm² + 70 cm² = 100 cm² (B).
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