Question

What should I put for this question

Answer 1

A

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

Answer 2

Answer: a) 4b+6

The perimeter is the sum of the sides,

P = b+2 + b+1 + b+2 + b+1

P = 4b + 6