# Area under a polar curve

1. Oct 4, 2012

### _MNice_

1. For what value of α is the area enclosed by r=∅, ∅=0, and ∅=α equal to 1?

2. x=rcos(∅)
y=rsin(∅)

3. x=∅cos(0)
x=∅cos(α)
y=∅sin(∅)
y=∅cos(α)

Don't know what to do after this

2. Oct 4, 2012

### LCKurtz

There is no point nor any need for rectangular coordinates for this problem. What is the polar coordinate integral formula for area inside r = f(θ)?