Jawabanmu

2014-06-18T20:36:36+07:00
=√35²-(20+8)²
=√1225-(28²
=√441
=21cm
2014-06-18T20:40:30+07:00
Pd= akar 35 kudrat - (20 + 8)kuadrat
pd = akar 1225 - 144
Pd =akar 1081
pd=32,87856