Question

Find the area of the sector. 1350 18 km

Answer 1

Answer:

21870 km^2

Step-by-step explanation:

Area of sector=1/2r^2(theta)

Where r=18 km and theta=135

Area of sector=1/2(18)^2(135)

=1/2(324)(135)

=1/2(43740)

=21870 km^2

Answer 2

Answer:

Area of the given sector=  $381.51Km^2$

Step-by-step explanation:

In the given figure,

Angle of sector=135°

    radius=18 km

Area of the sector=  $\frac{A}{360}\pi r^2$

Where 'A' = Given angle of the sector and r=radius of the sector

       $=\frac{135}{360}*\pi*(18)*(18) \\ \\=\frac{3}{8} *324*\pi$

       $=0.375*324*3.14$

    Area of the given sector=  $381.51Km^2$