Find the area shared by the circle

r $2$ equals $7$r$2=7$

and the cardioid

r $1$ equals $7$ left parenthesis $1$ minus cosine theta right parenthesisr$1=7(1$cos$).$

Question content area bottom

Part $1$

The area shared by the circle and the cardioid is

enter your response here.

$($Type an exact$$ answer, using

pi

as$$ needed.$)$