Respuesta :

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:

Area of the given sector=  [tex]381.51Km^2[/tex]

Step-by-step explanation:

In the given figure,

Angle of sector=135°

    radius=18 km

Area of the sector=  [tex]\frac{A}{360}\pi r^2[/tex]

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

       [tex]=\frac{135}{360}*\pi*(18)*(18) \\ \\=\frac{3}{8} *324*\pi[/tex]

       [tex]=0.375*324*3.14[/tex]

    Area of the given sector=  [tex]381.51Km^2[/tex]

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