lecch deburg 3 4. 5 23cm cm ст 130cn) 1 122 cm lorem 1427462 = 70cm
Jawaban:
1. keliling = 76cm
lebar = 13cm
[tex]panjang \: = \frac{keiling}{2} - panjang[/tex]
[tex] = \frac{76}{2} - 13[/tex]
[tex] = 38 - 13 = 25cm[/tex]
2. keliling = 122cm
lebar = 23cm
[tex]panjang \: = \frac{keliling}{2} - lebar[/tex]
[tex] = \frac{122}{2} - 23[/tex]
[tex] = 61 - 23[/tex]
[tex] = 38cm[/tex]
3. keliling = 70cm
lebar = 10cm
[tex]panjang = \frac{keliling}{2} - lebar[/tex]
[tex] = \frac{70}{2} - 10
[tex] = 35 - 10[/tex]
[tex] = 25cm[/tex]
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