Jawabanmu

2014-06-10T13:28:51+07:00
GSPD= L^ - (R+r)^
=34^ - (22+8)^
=34^ - 30^
=1156-900
=256
akar 256=16cm...

Semoga Membantu^^
2014-06-10T13:37:51+07:00
Gpd=pq²-(R-r)²
gpd=34²-(22-8)²
gpd=34²-(14)²
gpd=1156-196
gpd=960

jadi,panjang garis singgung persekutuan dalamnya=960 cm