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The perimeter of the equilateral triangle represented the expression 21x + 15. The perimeter is 78 units. Find the value of x and the length of each side.
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The perimeter of the equilateral triangle represented the expression 21x + 15. The perimeter is 78 units. Find the value of x and the length of each side.

User FTM
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1 Answer

3 votes

Answer: x=42

Step-by-step explanation:

side1=15

side2=21

side3=42

I think my answer will be helpfull

User Sludge
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