L=p.l
L=16×12
L=192cm²
--------------------
OP²=12²+16²
OP²=144+256
OP=√400
OP=20cm
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Penyelesaian:
L=p.l
L=16×12
L=192cm²
--------------------
OP²=12²+16²
OP²=144+256
OP=√400
OP=20cm
--------------------