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(belah segitiga tersebut menjadi 2 bagian)
diketahui alas : 6, sisi miring : 10, tinggi : 8
(triple phytagoras)
2.luas : 12 × 8 ÷ 2 = 48 cm2
3. luas juring : 80/360 × 3.14 × 10 × 10 = 1/45 × 314 = 314/45 = 69.78 cm2
4. tembereng = luas juring - luas segitiga
= 48 - 69.78 = 21.78 cm2....
semoga membantu..