Răspuns :
x+x+18+(x+18+18)+(x+18+18+18)=360
4x+108=360
4x=360-108
4x=252
x=63
x+18=81
x+18+18=81+18=99
x+18+18+18=99+18=117
4x+108=360
4x=360-108
4x=252
x=63
x+18=81
x+18+18=81+18=99
x+18+18+18=99+18=117
Sa spunem ca unghiurile sunt A, B, C, D
Daca sunt in jurul unui punct => m(A)+m(B)+m(C)+m(D)=360
m(A)=x
m(B)=x+18
m(C)=m(B)+18
m(D)=m(C)+18
Acum inlocuim in "enuntul" de mai sus
=> x+x+18+x+18+18+x+18+18+18=360
4x+108=360
4x=360-108
4x=252
x=252:4
x=63
=> m(A)=63
m(B)= 63+18= 81
m(C)=81+18=99
m(D)=99+18=117
Sper ca ai inteles :)
Daca sunt in jurul unui punct => m(A)+m(B)+m(C)+m(D)=360
m(A)=x
m(B)=x+18
m(C)=m(B)+18
m(D)=m(C)+18
Acum inlocuim in "enuntul" de mai sus
=> x+x+18+x+18+18+x+18+18+18=360
4x+108=360
4x=360-108
4x=252
x=252:4
x=63
=> m(A)=63
m(B)= 63+18= 81
m(C)=81+18=99
m(D)=99+18=117
Sper ca ai inteles :)