Question

7. Folosind figurile de mai jos, determină x​

Answer 1

a) 20 grade
b) 20 grade
c) 30 grade
d) 35 grade
e) 35 grade
f) 40 grade

Answer 2

Răspuns:

Explicație pas cu pas:

a)x=60°-40=20°

b) x=(90°-50)/2=20°

c) 2x+x=90°   ⇒x=30°

d) ∡BOC=90°-(30°+25°)=35°

e) ∡FOG=(140°-70°)/2=70°/2=35°

f) x+20°+2x+x=180°    ⇒4x=160°     ⇒x=40°