Question

ajutor ex 12 b c d rapid va rog

Answer 1

Răspuns

Explicație pas cu pas:

b) 3x + 2x + x = 90

6x = 90

x = 15

AOC = 45 grade; COD = 30 grade; DOB = 15 grade

c) AOC = 8 x 2 = 16 grade

16 + 2x + 5 + x = 90

3x = 69

x = 23

COE = 46 + 5 = 51 grade

EOB = 23 grade

d) 2x + 4 + x + 10 + x = 90

4x + 14 = 90

4x = 76

x = 19

AOC = 38 + 4 = 42 grade

COD = 19 + 10 = 29 grade

DOB = 19 grade