Question

DAU COROANA! AVETI IN POZA TOT.

Answer 1

DE||BC => tr. ADE ~ tr. ABC

$\frac{AD}{AB} = \frac{DE}{BC}$

$\frac{7}{14} = \frac{6}{BC}$

7BC=14×6

7BC=84 /÷7

BC=12

$\frac{DE}{BC} = \frac{6}{12} = \frac{1}{2}$