Question

afla masurile unghiurilor daca ele sint direct proportionale cu numerele 2. 3. 4.

Answer 1

presupun ca masurile unghiurilor uni triunghi
$\frac{a}{2} = \frac{b}{3} = \frac{c}{4}$ = k ⇒a=2k;b=3k;c=4k
a+b+c=180
2k+3k+4k=180
9k=180
k=20⇒a=40;b=60;c=80