Jawaban:
Garis singgung persekutuan luar
[tex] \sf {L}^{2} = {p}^{2} - {(R - r)}^{2} [/tex]
[tex]\sf {L}^{2} = {17}^{2} - {(15 - 7)}^{2} [/tex]
[tex]\sf {L}^{2} = {17}^{2} - {8}^{2} [/tex]
[tex]\sf {L}^{2} = 289 - 64[/tex]
[tex]\sf {L}^{2} = 225[/tex]
[tex]\sf {L} = \sqrt{225} [/tex]
[tex]\sf {L} = 15 \: cm[/tex]
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Jawaban:
Penyelesaian :
Garis singgung persekutuan luar
[tex] \sf {L}^{2} = {p}^{2} - {(R - r)}^{2} [/tex]
[tex]\sf {L}^{2} = {17}^{2} - {(15 - 7)}^{2} [/tex]
[tex]\sf {L}^{2} = {17}^{2} - {8}^{2} [/tex]
[tex]\sf {L}^{2} = 289 - 64[/tex]
[tex]\sf {L}^{2} = 225[/tex]
[tex]\sf {L} = \sqrt{225} [/tex]
[tex]\sf {L} = 15 \: cm[/tex]