A rectangle measures 10 cm by 16cm what is the perimeter
Perimeter= Length plus WidthL=10W=16Don't forget about the parallel sides.Add: 10 plus 10 = 20Add: 16 plus 16 = 32Add: 20 plus 32 = 52ExtraArea= Length times WidthL:10W:16Area: 10 times 16= 160Don't worry about the parallel sides.