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= 144 + 25 = 169
LP = √169 = 13
L. perm. an limas = L. alas + jumlah luas sisi tegak
= (10 x 10) + (4(1/2 x 13 x 5))
= 100 + 130 = 230
L. perm kubus = 6.S
= 6 (10) = 60
jadi, L. perm. an bangun diatas = 230 +60
= 290