The equation of the area of a triangle is Area=Length×Width. We know area=256.5 and length is 18. So now we know 256.5=18×width. We then divide 256.5÷18 to get the width. The width is 14.25. Perimeter=legth+length+width+width. If width is 18 and length is 14.25 then we add up all 4 sides. 18+18+14.25+14.25=64.5. 64.5 is the perimeter
The width of the rectangle is approximately 14.25 m. Therefore, using the length of 18 m, the perimeter is calculated to be 64.5 m. This is done using the formulas for area and perimeter of a rectangle.
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