Question

ABCD-patrulater convex
{a;b;c;d} direct proporțional {2;5;7;10}
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Answer 1

A+B+C+D =360 grade

A/2=B/5=C/7=D/10

A/2+B/5+C/7+D/10 =A+B+C+D/2+5+7+10 =360 /24 =15

A/2 =15  ;     A =2*15 =30 gr

B/5 =15 ;       B =5*15 =75 gr

C/7 =15   ;      C =7*15 =105 gr

D/10 =15  ;        D =10*15 =150 gr