d=√j²-(R1+r2)²
24=√j²-(7+3)²
24²=J²-(10)²
576=j²-100
576+100=j²
j=√576+100
j=√676
j=26 cm
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d=√j²-(R1+r2)²
24=√j²-(7+3)²
24²=J²-(10)²
576=j²-100
576+100=j²
j=√576+100
j=√676
j=26 cm