5+4=9
6+7=13
8+9=17
9+13=22
17+22=39
=39
Well it's a cube all sides should be the same size therefore 7 cm as it already says
The area is 220 because 8 times 20 is 160. and 6 times 20 is 120 divided by 2 is 60. then 160 plus 60 equals 220.
:)
Answer: 12
Step-by-step explanation: to find perimeter we have to add all the sides of the shape so, for a square you can just simply multiply your given side 3 by 4 because there is 4 sides of a square and this equals to 12.
