Question

Сторона А В треугольника А В С равна 8⁵/⁶см,сторона В С -меньше стороны А В на 3¹/²см,но больше ​

Answer 1

$bc=ab - 3 \times \frac{1}{2} = 8 \times \frac{5}{6} - 3 \times \frac{1}{2 } = \frac{53}{6} - \frac{7}{2} = \frac{53}{6} - \frac{21}{6} = \frac{32}{6} = 5 \times \frac{2}{6} = 5 \times \frac{1}{3}$

$ac = bc - 2 \times \frac{1}{4} = 5 \times \frac{1}{3} - 2 \times \frac{1}{4} = \frac{16}{3} - \frac{9}{4} = \frac{64}{12} - \frac{27}{12} = \frac{37}{12} = 3 \times \frac{1}{12}$

$p = \frac{53}{6} + \frac{32}{6} \times \frac{37}{12} = \frac{106}{12} + \frac{64}{12} + \frac{37}{12} = \frac{207}{12} = 17 \times \frac{3}{12} = 17 \times \frac{1}{4}$

Answer 2

Р=53/6+32/6×37/12=106/12+64/12+37/12=207/12=17 3/12=17 1/4