Question

find b if the rectangle has length of 45cm and a perimeter of 161cm

Answer 1

Hey mate ,

perimeter of rectangle = 2(L+B)

161 = 2(45+B)

80.5 = 45+B

B = 35.5 cm

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Answer 2

Answer:

1. (45*2)+2x= 161. 2x=71 x=35.5