Question

sa se afle masurile unghiurilor unui patrulater convex stiin ca sunt direct proportionale cu numerel 3,4,5si respestiv 6

Answer 1

a+b+c+d=360
a/3=b/4=c/5=d/6=k
a=3k
b=4k
c=5k
d=6k
3k+4k+5k+6k=360
18k=360 =>k=20
=>a=60
    b=80
    c=100
    d=120

Answer 2

{A,B,C,D} D.P {3,4,5,6}
A/3=B/4=C/5=D/6=K
A/3=K=>A=3k
B/4=K=>B=4k
C/5=K=>C=5k
D/6=K=>D=6k
3k+4k+5k+6k=360°
18k=360°
k=360°÷18
k=20°
A=60°
B=80°
C=100°
D=120°