Question

daca 2 unghiuri au 90 grade al treilea 45 de grade al ptrulea cat o sa aiba ? (astea intr-un trapez dreptunghic)

Answer 1

90+90+45+x=360
x+225=360
x=360-225
x=135 de grade

Answer 2

Notam : x -al 4-lea unghi 90+45+x=180 grade 135+x =180/-135 x=45 grade