You can't tell. The perimeter doesn't tell you the dimensions. There are an
infinite number of different rectangles with different dimensions that all have
the same 30-ft perimeter.
Here are a few:
1 by 14
2 by 13
3 by 12
4 by 11
5 by 10
6 by 9
7 by 8
7.1 by 7.9
7.2 by 7.8
7.3 by 7.7
7.4 by 7.6
7.41 by 7.59
7.42 by 7.58
7.43 by 7.57
.
.
etc.
4 feet
20
It depends on the shape of your room. If your room is a rectangle then your perimeter is 102 feet.
270 feet.
30 ft.
The perimeter is 30 feet for this rectangle.
The dimensions of the rectangle are 2 units and 15 units
30
4 feet
4 feet
20 feet
20
It depends on the shape of your room. If your room is a rectangle then your perimeter is 102 feet.
270 feet.
30 ft.
12 is.
Write two simultaneous equations and solve them. One for the perimeter, one for the area.