tolong bantu jawab ya 1. tentukan luas persegi panjang yg panjangnya 169 3/10 dan lebarnya 169 1/5 2. tentukan keliling segitiga siku siku yg panjang siku penyi

no 1
[tex]p \: = \frac{169 \times 10 + 3}{10} = \frac{1693}{10} [/tex]
[tex]l = \frac{16 \times 5 + 1}{5} = \frac{81}{5} [/tex]
[tex]luas \: = p \times l \\ = \frac{1693}{10} \times \frac{81}{5} \\ = \frac{137133}{50} \\ = 2742.66 \: {cm}^{2} [/tex]

no 2
[tex]s1 = \frac{12 \times 2 + }{2} = \frac{25}{2} \\ s2 = \frac{8 \times 2 + 1}{2} = \frac{17}{2} [/tex]
[tex]s3 = \sqrt{ {s1}^{2} + {s2}^{2} } \\ = \sqrt{ ({\frac{25}{2}})^{2} + (\frac{17}{2})^{2} } \\ = \frac{ \sqrt{914} }{2} \\ = 15.1162 \: cm[/tex]