Question

ABC isoscel,m(A)=30 de grade=>m(B)=?m(C)=?

Answer 1

Avem 2 situatii

1) A = 30° si B = C

B = C = (180 - 30) : 2 = 150 : 2 = 75°

2) A = B = 30° => C = 180 - 2 x 30 = 180 - 60 = 120°