Perimeter Considering the perimeter of the semi circle Circumference C =(1/2) πd =(1/2) π x 8 = 12.57 mm Considering the longest part of the triangle
the sides of the tri19-4) =15 , ? Since it is a right angled triangle The Longest side =√[(15^2)+(8^2)] = √[225+64] = √289 = 17 mmm Perimeter of figure = p(semi circle) + p(2 other lines left to close the figure) = 12.57 + 17+ 15=44.57mm
