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5√2 cm
b. SU = diagonal ruang = n√3
5√3 cm
c. SQ = WU = 5√2
WS = UQ = 5
Luas = p x l
5 x 5√2 = 25√2
b. SU = √5² + 5² + 5² = 5√3 cm
c. Luas QSWU = 5√2 x 5 = 25√2 cm²