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Perhatikan gambar persegi ABCD di bawah ini. Diketahui panjang diagonal AC = 10 cm dan . Tentukan keliling

Perhatikan gambar persegi  di bawah ini.

Diketahui panjang diagonal  dan size 14px angle size 14px BAC size 14px equals size 14px 45 size 14px degree. Tentukan keliling begin mathsize 14px style ABCD end style

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Jawaban terverifikasi

Jawaban

keliling .

keliling table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px ABCD end table table attributes columnalign right center left columnspacing 0px end attributes row blank size 14px equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px 20 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of size 14px 2 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px cm end table.

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Jadi, keliling .

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell AB squared end cell equals cell AC squared minus BC squared end cell row cell AB squared end cell equals cell 10 squared minus AB squared end cell row cell 2 AB squared end cell equals 100 row cell AB squared end cell equals 50 row AB equals cell square root of 50 end cell row AB equals cell 5 square root of 2 end cell end table end style

 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Keliling space ABCD end cell equals cell 5 square root of 2 cross times 4 end cell row blank equals cell 20 square root of 2 end cell end table end style

Jadi, keliling table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px ABCD end table table attributes columnalign right center left columnspacing 0px end attributes row blank size 14px equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px 20 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of size 14px 2 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px cm end table.

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