Jawaban:
[tex] \sf {L}^{2} = {s}^{2} - ( {R - r)}^{2} [/tex]
[tex]\sf {L}^{2} = {20}^{2} - ( {22 - 6)}^{2} [/tex]
[tex]\sf {L}^{2} = {20}^{2} - {16}^{2} [/tex]
[tex]\sf {L}^{2} = 400 - 256[/tex]
[tex]\sf {L}^{2} = 144[/tex]
[tex]\sf {L} = \sqrt{144} [/tex]
[tex]\sf {L} = 12 \: cm[/tex]
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Jawaban:
Penyelesaian :
G. singgung persekutuan luar
[tex] \sf {L}^{2} = {s}^{2} - ( {R - r)}^{2} [/tex]
[tex]\sf {L}^{2} = {20}^{2} - ( {22 - 6)}^{2} [/tex]
[tex]\sf {L}^{2} = {20}^{2} - {16}^{2} [/tex]
[tex]\sf {L}^{2} = 400 - 256[/tex]
[tex]\sf {L}^{2} = 144[/tex]
[tex]\sf {L} = \sqrt{144} [/tex]
[tex]\sf {L} = 12 \: cm[/tex]