Jika luas permukaan tabung adalah 616 cm2. Dengan jari jari 7 cm.hitunglah tinggi tabung tersebut

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Mapel : Matematika
Tentang : Bangun Ruang
Pertanyaan yg diajukan : 1
Pembahasan :

Diketahui :
- LP = 616 cm²
- r = 7 cm

Ditanya :
- t

LP = 2πr (r+t)
616 = 2 x 22/7 x 7 (7 +t)
616 = 2 x 22 (7 + t)
616 = 44 (7 + t)
7 + t = 616/44
7 + t = 14
t = 14 - 7
t = 7 cm

Jawaban : 7 cm

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