a. Perimeter of the Picture would be all the sides added up all together. Since it's a 5in. by 7in. picture we know that two sides equal 5 inches and the other two sides equal 7 inches. 5+5+7+7= 10+14= 24 inches
b. If I'm understanding correctly then ... There is a 1 inch between the picture and the frame. Thus, each side of the picture has two added inches (one inch on the right and left side)
So, the sides with 5 inches now have two inches extra resulting in its length becoming 7 because 5+2=7 The other two sides with 7 inches now have two extra inches as well. Now becoming nine inches in length.
The frame is determined to be a 7in. by 9in. Just like we did with the picture, we know add up all the sides. 7+7+9+9= 14+18= 32inches
Ok.... so the first part is asking you what the perimeter of the picture itself is. The picture is 5in by 7in.... SO you add 5+5+7+7=24.... So the perimeter of the pic is 24 inches.
Now part b
So the frame is one inch thick This mean that the sides are now 2 inches longeron each side
SO we have 7+7+9+9=32
So the perimeter is 32
I hope that helped!!!!! If you dont understand something ask and i will reexplain ;)
