.Find the perimeter of a rectangle whose length and width is 20 cm and 9 cm, respectively
A: 58 cm
B: 85 cm
C: 29 cm
D: 40 cm
Given,
Length = 20 cm
Width = 9 cm
Perimeter of Rectangle = 2(Length + Width)
= 2(20 +9) cm
= 2 x 29 cm
Therefore, the perimeter of a rectangle = 58 cm
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