Question

Alex has a small notebook that is shaped like a rectangle . She knows one side is 6 cm and another side is 4 cm .Explain how to find the distance around the notebook without using a ruler .

need help for 2nd grade

Answer 1

20 centimeters

Explanation:

step 1: so we know that one side is 6 and the other side is 4, right? and since it is a rectangle, we know that there is four sides. if one side is 6 cm, and the other is 4, that means that the other two sides are also going to be 4 and 6.

step 2: so now we have 6 + 4 + 6 + 4. Let's simplify this. you know that 6 + 4 is 10, right? so now you've done the first part: 6 + 4 + 6 + 4. now since we are doing 6 + 4 twice, that means it is 10+10 now.

step 3: 10+10 is 20, so now you know that the perimeter (or the distance around the notebook) is 20 cm.

Answer 2

20 cm

Explanation:

Since it is a rectangle, we know that there are two pairs of sides the same length. All we have to do is add each number by itself, and add those numbers together, or you can envision it like this graph I made.

4+4=8

6+6=12

8+12=20