d=√p²-(R+r)²
20=√p²-(9+6)²
400=p²-15²
400+225=p²
p=√625
p=25cm(d.)
Semoga bermanfaat
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Penyelesaian
d=√p²-(R+r)²
20=√p²-(9+6)²
400=p²-15²
400+225=p²
p=√625
p=25cm(d.)
Semoga bermanfaat