Tik_Ber
• Bidang 1
A1 = 3 × 3 = 9
titik berat 1 = (3/2,3/2)
• Bidang 2
A2 = 3 × (6 - 3) = 9
tb 2 = (9/2, 3/2)
• Bidang 3 segitiga
A3 = 1/2 × 3 × 3 = 9/2
tb 3 = (9/2, 4)
Titik berat benda
x = (A1x1 + A2x2 + A3x3)/(A1 + A2 + A3)
x = (9.3/2 + 9.9/2 + 9/2.4) / (9 + 9 + 9/2)
x = (27 + 81 + 36)/(18 + 18 + 9)
x = 144/45
x = 3,2
Letak tik ber benda thd sb y = 3,2 cm
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Tik_Ber
• Bidang 1
A1 = 3 × 3 = 9
titik berat 1 = (3/2,3/2)
• Bidang 2
A2 = 3 × (6 - 3) = 9
tb 2 = (9/2, 3/2)
• Bidang 3 segitiga
A3 = 1/2 × 3 × 3 = 9/2
tb 3 = (9/2, 4)
Titik berat benda
x = (A1x1 + A2x2 + A3x3)/(A1 + A2 + A3)
x = (9.3/2 + 9.9/2 + 9/2.4) / (9 + 9 + 9/2)
x = (27 + 81 + 36)/(18 + 18 + 9)
x = 144/45
x = 3,2
Letak tik ber benda thd sb y = 3,2 cm