Perimeter of rectangle is 54.6 cm
What is perimeter of rectangle?
The perimeter of a form is the space surrounding its edge. Find the perimeter of various forms by summing the lengths of their sides.
Perimeter = 2(length+width)
length 'CD' = 20×cos(30) = 17.3205
width 'AD' = 20×cos(60) = 10
Perimeter = 2(17.3205+10)
= 2(27.3205)
= 54.641
= 54.6 cm
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