Jawabanmu

2014-04-02T22:28:49+07:00
S = √d^2 + ( R + r ) ^2
   = √24^2 + ( 5 + 2 )^2
   = √576 + 100
   = √676 = 26

selesaii...
2014-04-02T22:39:55+07:00
X²=24²+(5+2)² x²=576+49 x=√625= 25