Luas permukaan tabung dg diameter 35cm dan tinggi 75 cm adalah
Diket :
• d = 35 cm
• r = 35/2 cm
• t = 75 cm
• π = 22/7
Dit :
• LP = ?
• LP = 2 × π × r × (r + t)
• LP = 2 × (22/7) × (35/2) × (35/2 + 75)
• LP = 2 × (22/7) × (35/2) × (185/2)
• LP = 22 × 5 × 185/2
• LP = 11 × 5 × 185
• LP = 10.175 cm²