Jawabanmu

2014-04-05T09:33:42+07:00
L^2 = p^2 - (R-r)^2
15^2 = p^2 - ( 25 - 17 )^2
225 = p^2 - 64
p^2 = 289
p = akar 289
p = 17 cm 
2014-04-05T09:37:48+07:00
l^2 = p^2 - (R-r)^2
15^2 = p^2 - ( 25 - 17 )^2
225 = p^2 - 64
p^2 = 289
p = akar 289
p = 17 cm .