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SQ = 1/6 x 44/7 x 21
SQ = 22 cm
RP = 60/360 x 2 x 22/7 x 14
RP = 1/6 x 44/7 x 14
RP = 14,67
panjang SRPQ
= SR + RP + PQ + SQ
= 7 + 14,67 + 7 + 22
= 50,67 cm (D)