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The length of each side is: (12x+21)/3 = 4x+7

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What is formula of finding the perimeter of a triangle?

Perimeter of a triangle = (length of the first side) plus (length of the second side) plus (length of the third side)


What is the formula for perimeter of a tiragle?

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In an equilateral triangle, all 3 sides are the same length, so your equation would look something like this: P=the perimeter of the triangle (x+3)=length of each side P=3(x+3) If you wanted to simplify further, you would distribute the 3 to both the x and the 3 inside of the parentheses, giving you P=3x+9.


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If the base of a triangle is doubled while the other sides remain unchanged, the perimeter of the triangle will increase by the amount equal to the original base length. Specifically, if the original base is ( b ) and the other two sides are ( a ) and ( c ), the new perimeter becomes ( (2b + a + c) ), resulting in an increase of ( b ). Thus, the total perimeter becomes the original perimeter plus the original base length.


If one side of an equilateral hexagon has length 2x plus 1 what is the permiter?

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The width is half the length: The perimeter is twice the length plus twice the width. If the perimeter is 3 times the length, twice the width must be the length.


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