Question

plssss repede maine ma ascultă!​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

<D = <E

<F = <G

<D + <G = 180°

<G = 4<D/5

<D + 4<D/5 = 180°

5<D/5 + 4<D/5 = 180°

9<D/5 = 180°

<D = 5*180°/9 = 100°

<G = 180° - 100° = 80°

_______________

b)

<D = <E

<F = <G

<F + <D = 180°

<F = 5<D/7

5<D/7 + <D = 180°

5<D/7 + 7<D/7 = 180°

12<D/7 = 180°

<D = 7*180°/12 = 105°

<F = 180° - 105° = 75°