Question

Masurile unui triunghi sunt i.p cu nr. 0,5; 0,(3); 0,25.
Aflati masurile unghiurilor.

Answer 1

0,5x=k     x=k/0,5  x=2k
0,(3)y=k  3y/9=k    y=9k/3=3k
0,25z=k    z=4k
x+y+z=180⁰
2k+3k+4k=180⁰
9k=180⁰
k=20⁰
x=2k=2*20=40⁰
y=3k=3*20=60⁰
z=4k=4*20=80⁰

Answer 2

(A,B,C) i.p. (0,5,0,(3),0,25)
A+B+C=180 grade
$\frac{A}{0,5}= \frac{B}{0,(3)}= \frac{C}{0,25} =K$
$Ax \frac{5}{10}=Bx \frac{3}{9}=Cx \frac{25}{100}=K$
A=K/5/10=10/5 K=2K
B=K/3/9=9/3K=3K
C=K/25/100=100/25K=4K
2K+3K+4K=180
9K=180
K=180:9
K=20
A=20x2=40 grade
B=20x3=60 grade
C=20x4=80 grade