The lengths of the four sides of a quadrilateral (in centimeters) are consecutive even integers. If the perimeter is 84 centimeters, find the value of the longest of the four side lengths.Answer: centimeters
Q. The lengths of the four sides of a quadrilateral (in centimeters) are consecutive even integers. If the perimeter is 84 centimeters, find the value of the longest of the four side lengths.Answer: centimeters
Define Variable: Let's call the smallest side length x. Then the other side lengths are x+2, x+4, and x+6, since they are consecutive even integers.
Calculate Perimeter: The perimeter is the sum of all side lengths, so we have x+(x+2)+(x+4)+(x+6)=84.
Combine Like Terms: Combine like terms to get 4x+12=84.
Solve for x: Subtract 12 from both sides to get 4x=72.
Find Longest Side: Divide both sides by 4 to find x, which gives us x=18.
Find Longest Side: Divide both sides by 4 to find x, which gives us x=18. The longest side is x+6, so we substitute x with 18 to get 18+6=24 centimeters.
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