Question 161483
SHORT=LONGEST/2+30
MIDDLE=LONGEST-2
LONGEST+(LONGEST/2+30)+LONGEST-2=378
L+L/2+30=L-2=378
2.5L=378-30+2
2.5L=350
L=350/2.5
L=140  YDS. IS THE LONGEST SIDE.
S=140/2+30=70+30=100 YDS. IS THE SHORTEST SIDE.
M=140-2=138 YDS. IS THE MIDDLE SIDE.
PROOF:
140+100+138+378
378=378