SOLUTION: The perimeter of a triangle is 45 inches. The first side is twice the length of the second, and the third is 5 inches longer than the second. Find the length of each side.
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Question 498198: The perimeter of a triangle is 45 inches. The first side is twice the length of the second, and the third is 5 inches longer than the second. Find the length of each side.
Answer by Flannery(124) (Show Source): You can put this solution on YOUR website!
Let 2S be side one
Let S be side two
Let S+5 be side three
Perimeter equals 2S plus S plus S+5
45=2S+S+S+5
45=4S+5
40=4S
s=10
45=2(10)+10+10+5
45=20+10+10+5
45=45
Q.E.D.
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