$\"\"$

The area of the function is $\"\"$ .

Graph the region:

$\"\"$ .

Observe the graph:

The graph of the function is in the shape of semi circle.

Semi circle has the radius $\"\"$ .

The area of the semi circle is $\"\"$ .

$\"\"$ = Area of the semicircle.

Area of the semicircle $\"\"$ .

$\"\"$ $\"\"$ Sq -units. $\"\"$

$\"\"$ $\"\"$ Sq -units.