Jawabanmu

Jawaban paling cerdas!
2014-04-21T10:56:33+07:00
L.alas + ( L.segitiga ×4 )= (20×20 ) + ( a× t /2 × 4= 400 + ( ( 20 × 16/ 2 ) × 4 )= 400+ ( 160 × 4 )= 400+ 640 = 1040
2 4 2