Answer:
[tex]18.9 cm^2[/tex]
Step-by-step explanation:
Radius of the Circle = 4cm
Central Angle of the Sector =[tex]\frac{3\pi}{4}[/tex]
Area of a Sector (In Radian) [tex]=\frac{\theta}{2\pi} X \pi r^2[/tex]
[tex]=\frac{3\pi}{4*2\pi} X \pi *4^2\\=18.85cm^2[/tex]
Area of the Sector =[tex]18.85 cm^2 \approx 18.9cm^2[/tex] (To the nearest tenth)
