Find the perimeter of the rectangle. The other portion is a square.
_________________
|8sq.| |
| | |
|____|___________]
<------20-------->
Can't make out your diagram.
Please describe it in words.
the diagram is shaded in 8 sq. and under the whole rectangle there is a 20
_________________
|8sq.| |
| | |
|____|___________]
<------20-------->
To find the perimeter of a rectangle, you need to add up the lengths of all four sides.
In this case, we can see that the rectangle has a length of 20 units and a width of 8 units. Therefore, two sides of the rectangle are 20 units long, and the other two sides are 8 units long.
Adding the lengths together, we get:
20 + 20 + 8 + 8 = 56
The perimeter of the rectangle is 56 units.