Jawabanmu

2014-05-23T23:06:52+07:00
1/2s²= 17²-15²
1/2s²=289-225
1/2s =√64
1/2s=8
     s=16cm

LP= (s×s)+{4(1/2×la×t)}
   = (16×16) + (4× 1/2×16×17)
   = 256 +(4 ×136)
   = 256 + 544
   = 800cm²


Jawaban paling cerdas!
2014-05-24T08:40:00+07:00
1/2s=√17²-15²
1/2s=√289-225
1/2s=√64
1/2s=8
s=8×2=16
LP=L.ALAS+L.s tegak
LP=(16×16)+4(16×17/2)
LP=256+(4.136)
LP=256+544
LP=800
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