The length of a broken line consisting of 3 links is 15 cm. The length of one link is 4 cm.
| March 11, 2021 | education
The length of a broken line consisting of 3 links is 15 cm. The length of one link is 4 cm. Find the lengths of the other two links if one of them is 1 cm shorter than the other.
The whole length is 15 cm.
The first link is 4 cm long.
The second link is 1 cm longer than the third.
Determine the length of the second and third links.
15 – 4 = 11 cm.
Therefore, the length of the second and third links is 11 cm.
The lengths of the second and third links are as follows. Let’s denote one link through s. Therefore, the other link is x + 1.
X + x + 1 = 11.
2x = 11 – 1.
2x = 10.
X = 10/2 = 5.
The second link is 5 cm long.
5 + 1 = 6 cm.
Answer: 5 and 6 cm.
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