You can choose any three numbers that total 10, but the sum of any two of those numbers must be greater than the third number.
For example, Isosceles triangles : 3,3,4 : 4,4,2
Equilateral triangle : 3⅓,3⅓, 3⅓
Scalene triangle : 2, 3½, 4½
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24 inches You can find the perimeter of a triangle by adding the lengths of all three sides. In this case, since the triangle measures 6, 8, and 10 inches, its perimeter would be the sum of these numbers which is 24 inches.
6 in by 8 in by 10 in.
Perimeter: 5+10+length of its 3rd side
Add all three sides. Perimeter = 15 + 17 + 10 = 42
To find four numbers that make a perimeter of 45, you can use the formula for the perimeter of a rectangle, which is ( P = 2(l + w) ). For example, you could choose the lengths ( l = 10 ) and ( w = 12.5 ). Thus, the four numbers representing the lengths of the sides would be ( 10, 12.5, 10, ) and ( 12.5 ) (or any combination that adds up to 22.5 when doubled).