Diketahui:

Sudut keliling&nbsp;<img align="middle" alt="straight m angle MAN equals 120 degree" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MAN«/mi»«mo»=«/mo»«mn»120«/mn»«mo»§#176;«/mo»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />.

Sudut pusatnya adalah sudut reflek&nbsp;dari&nbsp;<img align="middle" alt="straight m angle MON" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MON«/mi»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />.

Sehingga diperoleh:

<img align="middle" alt="table attributes columnalign right center left columnspacing 0px end attributes row cell straight m angle MON end cell equals cell 360 degree minus sudut space reflek space straight m angle MON end cell row blank equals cell 360 degree minus open parentheses 2 cross times sudut space keliling close parentheses end cell row blank equals cell 360 degree minus open parentheses 2 cross times angle MAN close parentheses end cell row blank equals cell 360 degree minus open parentheses 2 cross times 120 degree close parentheses end cell row blank equals cell 360 degree minus 240 degree end cell row blank equals cell 120 degree end cell end table" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MON«/mi»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»360«/mn»«mo»§#176;«/mo»«mo»-«/mo»«mi»sudut«/mi»«mo»§#160;«/mo»«mi»reflek«/mi»«mo»§#160;«/mo»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MON«/mi»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»360«/mn»«mo»§#176;«/mo»«mo»-«/mo»«mfenced»«mrow»«mn»2«/mn»«mo»§#215;«/mo»«mi»sudut«/mi»«mo»§#160;«/mo»«mi»keliling«/mi»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»360«/mn»«mo»§#176;«/mo»«mo»-«/mo»«mfenced»«mrow»«mn»2«/mn»«mo»§#215;«/mo»«mo»§#8736;«/mo»«mi»MAN«/mi»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»360«/mn»«mo»§#176;«/mo»«mo»-«/mo»«mfenced»«mrow»«mn»2«/mn»«mo»§#215;«/mo»«mn»120«/mn»«mo»§#176;«/mo»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»360«/mn»«mo»§#176;«/mo»«mo»-«/mo»«mn»240«/mn»«mo»§#176;«/mo»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»120«/mn»«mo»§#176;«/mo»«/mtd»«/mtr»«/mtable»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />

Maka, besar&nbsp;<img align="middle" alt="straight m angle MON" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MON«/mi»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" /> adalah&nbsp;<img align="middle" alt="120 degree" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mn»120«/mn»«mo»§#176;«/mo»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />.

Perhatikan gambar berikut!

<img alt="" src="https://imgix2.ruangguru.com/assets/miscellaneous/png_yql2ez_6932.png" style="width: 200px; height: 143px;" />

Diketahui&nbsp;<img align="middle" alt="straight m angle MAN" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MAN«/mi»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;adalah&nbsp;<img align="middle" alt="120 degree" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mn»120«/mn»«mo»§#176;«/mo»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />. Tentukan besar&nbsp;<img align="middle" alt="straight m angle MON" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi mathvariant=¨normal¨»m«/mi»«mo»§#8736;«/mo»«mi»MON«/mi»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />!

matematika

bahasa indonesia

ipa terpadu

fisika

biologi

bahasa inggris

geografi

sosiologi

sejarah

kimia

ekonomi

Perhatikan gambar berikut! Diketahui adalah . ...

Jawaban: