The first side of a triangle is twice the length of the second side; the third side is 20 feet less than three times the second
side. The perimeter of the triangle is 106 feet. Find the three sides.
1 answer:
x=2nd side
2x=1st side
3x-20=3rd side
x+(2x)+(3x-20)=106
6x-20=106
6x-20+20=106+20
6x=126
6x/6=126/6
x=21
1st side=42 ft
2nd side-21 ft
3rd side=43 ft
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