Is it 25 cm???????.................
Let r be a radius of a given circle and α be an angle, that corresponds to a sector.
The circle area is

and denote the sector area as

.
Then

(the ratio between area is the same as the ratio between coresponding angles).

.
Plug in 35 into the equation P(t)
P(35) = 14(35)^2+650(35)+32,000