Question

Determinati masurile unghiurilor unui patrulater convex stiind ca acestea sunt invers proportionalecu 1 ;0,5;0,(3);0,25

Answer 1

a+b+c+d=360
0,5=1/2
0,(3)=3/9=1/3
0,25=25/100=1/4
a=b/2=c/3=d/4=k
b=2k
c=3k
d=4k
k+2k+3k+4k=360
10k=360 => k=36
a=36
b=72
c=108
d=144