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2992 = 2. 22/7 . 14 (14+t)
2992 = 88(14+t)
2992 = 1232 + 88t
2992-1232 = 88t
1760 = 88t
t = 1760/88
t = 20 cm
2992 = 2 x 22/7 x 14 (14+t)
2992 = 88(14+ t)
2992 = 1232 + 88 t
2992 - 1232 = 88 t
1760 = 88t
=
= 20 cm
Jadi Jawabannya B => 20 cm