Jawabanmu

2014-04-03T20:28:55+07:00
Panjang sisi 5 cm didapat dari pytagoras.
keliling = 5x4 = 20cm
luas = sxs = 5x5 =25 cm
2014-04-03T20:29:25+07:00
Diagonal sisi =  5\sqrt{2}
Sisi = 5 cm
Keliling ABCD = 5x4 = 20 cm
Luas ABCD = 5x5 = 25 cm