Answer:
When 2 lines are parallel, the sum of interior corresponding angles = 180
120 + b = 180
b = 180 - 120 = 60
a + 30 = 180
a = 180 - 30 = 150
Providing a short wikipedia definition here: "In mathematics, a rational number is any number that can be expressed as the quotient or fraction"
So any fraction would work for this question I believe?
---- x ----
| | 0.25x
---- x ----
x + x + 0.25x + 0.25x = 35
2.5x = 35
x = 35/2.5
x = 14
width is 14
length is 1/4 this.
length = 7/2