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The lengths of the four sides of a quadrilateral (in centimeters) are consecutive integers. If the perimeter is 126 centimeters, find the value of the shortest of the four side lengths.
Answer: centimeters

The lengths of the four sides of a quadrilateral (in centimeters) are consecutive integers. If the perimeter is 126126 centimeters, find the value of the shortest of the four side lengths.\newlineAnswer: centimeters

Full solution

Q. The lengths of the four sides of a quadrilateral (in centimeters) are consecutive integers. If the perimeter is 126126 centimeters, find the value of the shortest of the four side lengths.\newlineAnswer: centimeters
  1. Denote Shortest Side: Let's denote the shortest side of the quadrilateral as xx (in centimeters). Since the sides are consecutive integers, the other three sides can be represented as x+1x+1, x+2x+2, and x+3x+3. The perimeter of the quadrilateral is the sum of its side lengths.\newlineSo, the equation for the perimeter is:\newlinex+(x+1)+(x+2)+(x+3)=126x + (x + 1) + (x + 2) + (x + 3) = 126
  2. Simplify Equation: Now, let's simplify the equation by combining like terms: 4x+6=1264x + 6 = 126
  3. Subtract to Isolate x: Next, we subtract 66 from both sides of the equation to isolate the term with xx: \newline4x+66=12664x + 6 - 6 = 126 - 6\newline4x=1204x = 120
  4. Divide to Solve xx: Now, we divide both sides of the equation by 44 to solve for xx:4x4=1204\frac{4x}{4} = \frac{120}{4}x=30x = 30
  5. Verify Solution: We have found that the shortest side length, xx, is 3030 centimeters. To ensure there are no math errors, we can check our work by adding the side lengths and verifying that they equal the perimeter:\newline30+31+32+33=12630 + 31 + 32 + 33 = 126

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