Bentuk umum persamaan lingkaran:

<img align="middle" alt="begin mathsize 14px style left parenthesis x minus a right parenthesis squared plus left parenthesis y minus b right parenthesis squared equals r to the power of 2 end exponent end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msup»«mrow»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»a«/mi»«mo»)«/mo»«/mrow»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mrow»«mo»(«/mo»«mi»y«/mi»«mo»-«/mo»«mi»b«/mi»«mo»)«/mo»«/mrow»«mn»2«/mn»«/msup»«mo»=«/mo»«msup»«mi»r«/mi»«mrow»«mn»2«/mn»«/mrow»«/msup»«/mrow»«/mstyle»«/math»" height="17" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="141" />&nbsp;dengan titik pusat&nbsp;<img align="middle" alt="begin mathsize 14px style left parenthesis a comma space b right parenthesis end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mo»(«/mo»«mi»a«/mi»«mo»,«/mo»«mo»§#160;«/mo»«mi»b«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="14" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -2px;" width="37" />.

Sehingga, dari persamaan&nbsp;lingkaran&nbsp;<img align="middle" alt="begin mathsize 14px style open parentheses x plus 2 close parentheses squared plus open parentheses y minus 4 close parentheses squared equals 16 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msup»«mfenced»«mrow»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«/mrow»«/mfenced»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mfenced»«mrow»«mi»y«/mi»«mo»-«/mo»«mn»4«/mn»«/mrow»«/mfenced»«mn»2«/mn»«/msup»«mo»=«/mo»«mn»16«/mn»«/mrow»«/mstyle»«/math»" height="17" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="146" />, diperoleh pusat&nbsp;<img align="middle" alt="begin mathsize 14px style left parenthesis negative 2 comma space 4 right parenthesis end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mo»(«/mo»«mo»-«/mo»«mn»2«/mn»«mo»,«/mo»«mo»§#160;«/mo»«mn»4«/mn»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="14" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -2px;" width="50" />.

Persamaan lingkaran&nbsp;<img align="middle" alt="begin mathsize 14px style open parentheses x plus 2 close parentheses squared plus open parentheses y minus 4 close parentheses squared equals 16 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«msup»«mfenced»«mrow»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«/mrow»«/mfenced»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mfenced»«mrow»«mi»y«/mi»«mo»-«/mo»«mn»4«/mn»«/mrow»«/mfenced»«mn»2«/mn»«/msup»«mo»=«/mo»«mn»16«/mn»«/mrow»«/mstyle»«/math»" height="17" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="146" />. Tentukan :

a. Titik pusat lingkaran

matematika

bahasa indonesia

ipa terpadu

fisika

biologi

bahasa inggris

geografi

sosiologi

sejarah

kimia

ekonomi

Persamaan lingkaran . Tentukan : a. Titik pusat l...

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