diket
r1=7
r2=2
j=13 cm
ditnya l ???
l=√j²-(r1-r2)²
=√13²-(7-2)²
=√169-25
=√144
=12 cm
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diket
r1=7
r2=2
j=13 cm
ditnya l ???
l=√j²-(r1-r2)²
=√13²-(7-2)²
=√169-25
=√144
=12 cm