Question

Aflati unghiul unui patrulater ABCD care sunt direct proportionale cu 2;3;5;8​

Answer 1

Răspuns:

Bună, sper ca te am ajutat!!

Answer 2

<A=a; <B=b; <C=c; <D=d

$\frac{a}{2} = \frac{b}{3} = \frac{c}{5} = \frac{d}{8} = k \\ a = 2k \\ b = 3k \\ c = 5k \\ d = 8k \\ a + b + c + d = 360 \\ 2k + 3k + 5k + 8k = 360 \\ 18k = 360 \\ k = \frac{360}{18} = 20 \\ a = 2 \times 20 = 40 \\ b = 3 \times 20 = 60 \\ c = 5 \times 20 = 100 \\ d = 8 \times 20 = 160$