# How do you find the length of the cardioid #r=1+sin(theta)#?

##### 1 Answer

Sep 13, 2015

Refer to explanation

#### Explanation:

The length of a curve with polar equation r = f(θ), a ≤ θ ≤ b, is given

by

hence

Then we have that

So if you have to calculated the last integral for known values of integration limits a,b