jarak/p=17 cm
Grs singgung persekutuan dalam/d=15 cm
jari² kecil/r=2cm
jari² besar=R...?
jawab=
d²=p²+(R+r)²
15²=17²+(R+2)2
225=289+(R+2)²
(R+2)²=289-225
(R+2)²=64
R+2=√64 (akar dari 64)
R+2=8
R=8-2
R=6 cm
sorry klo salah:) semoga membantu
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jarak/p=17 cm
Grs singgung persekutuan dalam/d=15 cm
jari² kecil/r=2cm
jari² besar=R...?
jawab=
d²=p²+(R+r)²
15²=17²+(R+2)2
225=289+(R+2)²
(R+2)²=289-225
(R+2)²=64
R+2=√64 (akar dari 64)
R+2=8
R=8-2
R=6 cm
sorry klo salah:) semoga membantu