circle Questions

A circular lawn has an area of $154\text{sq meter}$. A path of $7\text{meter}$ width surrounds the lawn. What is the area of the lawn including the path? (in $\text{sq meter}$)

$AB$ and $CD$ are two parallel chords of a circle such that $AB=10\text{cm}$ and $CD=24\text{cm}$. If the chords are on the opposite sides of the centre and the distance between them is $17\text{cm}$, then the radius of the circle is: