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= 4 x (1/2 x 10 x 13) + 10 x 10
= 4 x (65) + 100
luas limas = 360 cm
13 didapat dari, 12^2 + 5^2 = 144 + 25 = 169 = √169 = 13 cm
yg nome 2 nyusul ya..??