Taking the first shape being a rectangle: Perimeter of a rectangle=2(l+b),where l is the length and “b or w” is the breadth or width
Hence perimeter of rectangle=2(1.4+2.1) =7m
The other shape is a semi circle: Hence perimeter of a circle =xr (where x is referred to as pi =22/7is constant and r= radius of the circle =1/2 of 1.4(length of rectangle)
Since is a semi circle, 1/2xr 1/2(22/7x0.7)=1.099955~1.1
Total perimeter=perimeter of rectangle +perimeter of semi circle=7m +1.1m=8.1m
