Jawabanmu

2014-03-01T17:48:49+07:00
A. EC = 10√3 cm 1/2 EC = 5√3 AC = 10√2
      \sqrt{(10 \sqrt{2} )^{2}-(5 \sqrt{3} )^{2}    }
  =  \sqrt{200-75}
  =  \sqrt{125}
  = 5 \sqrt{5} cm
B. BD = 10√2 cm 1/2BD = 5√2 cm PB = 5√3 = 1/2 HB
    \sqrt{(5 \sqrt{3} )^{2}-(5 \sqrt{2}) ^{2}    }
 =  \sqrt{75-50}
 =  \sqrt{25}
 = 5 cm
1 5 1