tolong kerjakan no 3 sampai 6 TENTANG TENTUKAN LUAS

4. 2πrs = 2 × 22/7 × 14 × 10 = 880 cm²
5. 6r² = 6 × 4² = 6 × 16 = 96cm²
6. Segitiga tegak 1 = 2×a×t /2 = 2×10×8/2 = 80 cm²
Segitiga tegak 2 = 2×a×t /2 = 2 × 5 × 9 / 2 = 45 cm²
Alas limas = p×l = 10×5 = 50cm²
Total luas limas = 80 + 45 + 50 = 175 cm²