Question

va rog exercițiul 4 si 7 va rog

Answer 1

4.

a) x+4x+5=180°

5x=175°

x=35°

b)5x+3x=180°

8x=180°

x=45°/2

c)x+70+x-10=180°

2x=100°

x=50°

d)5x+4x=90°

x=10°

e)3x+15+2x=90°

5x=75°

x=15°

7.m(COD)=180-m(AOB)-m(BOC)-m(DOE) = 180-35-42-50=33°