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The length of the sides of a triangle are three consecutive natural number. If the largest of these number is y, what is the perimeter of the triangle?

The length of the sides of a triangle are three consecutive natural number. If the largest of these number is y, what is the perimeter of the triangle?

Grade:8

2 Answers

Clement Yung
19 Points
6 years ago
Total perimeter = y + (y – 1) + (y – 2) = 3y – 3, where y is a natural number greater than 1. 
 
Any 3 consecutive natural numbers can form the sides of a triangle as long as the smallest number is greater than 1.
 
Vikas TU
14149 Points
6 years ago
The sides are 3,4,5.
     It forms a right angled triangle.
Largest side is y=5.
Smallest side is 3.
Perimeter = 12

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