Perimeter if semicircle \\\\(=\\pi r + 2r\\\\)since \\\\(d=14cm\\\\)\\\\(r=\\dfrac{d}{2} = \\dfrac{{14}}{2} = 7cm\\\\)\\\\(\\dfrac{d}{2} = \\dfrac{{14}}{2} = 7cm\\\\)\\\\( = 22cm + 14cm\\\\)\\\\( = 36cm.\\\\)