The 7-inch chord can be divided into three parts, one with a length of 3 inches and two with a length of 2 inches.
What are the length of three parts from a 7-inch chord?
In this problem we have a chord of 7 inches long that must be divided into three parts such that one part is a inch longer than any of the two other parts. Mathematically speaking, the situation is represented by the following linear equation, which is resolved afterwards:
x + x + x + 1 = 7
3 · x + 1 = 7
3 · x = 6
x = 2
In consequence, the 7-inch chord can be divided into three parts, one with a length of 3 inches and two with a length of 2 inches.
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