2(LB + BH + LH) = 484 cm²
LB = 72cm²
H = 10 cm²
FIND L+B and L-B
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2(LB + BH +HL) = 484
LB + BH + HL = 242
72 +BH + HL = 242
BH + HL = 242-72
BH + HL= 170
H(B+L) = 170
10(B + L) = 170
B + L = 170/10
B+L = 17
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