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Westkost [7]
4 years ago
14

What should I put for this question

Mathematics
2 answers:
Gre4nikov [31]4 years ago
7 0

Answer: a) 4b+6

The perimeter is the sum of the sides,

P =   b+2  +  b+1  +  b+2  +  b+1  

P = 4b + 6

Hatshy [7]4 years ago
5 0

Answer:

A

Step-by-step explanation:

Perimeter is the outside of a shape.

Since a rectangle has the same sides, all you have to do is:

2(b+2)+2(b+1)

In the 1st one

2·b=2b

2·2=4

2b+4

2·b=2b

2·1=2

2b+2

2b+4+2b+2

2b+2b=4b

4+2=6

A=4b+6

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