A rectangular garden has a length of 25 meters and a width of 18 meters. If a path of uniform width 2 meters is constructed around the outside of the garden, what is the perimeter of the outer edge of the path?
102 meters
The path of width 2 metres runs all around the outside of the garden, so it adds 2 metres on each side of both the length and the width.
Outer length \(=25+2+2=29\) metres.
Outer width \(=18+2+2=22\) metres.
Perimeter of the outer edge \(=2\times(\text{length}+\text{width})=2\times(29+22)\).
Perimeter \(=2\times51=102\) metres.
Hence, the perimeter of the outer edge of the path is 102 meters.
The shorter side of a rectangle is 15 cm less than the longer side. The numerical value of its area is equal to 5 times the numerical value of its perimeter. What is the length (in cm) of its longer side?