The area of the sector bounded by 180 degree arc is 8[tex]\pi[/tex] cm²
What is a semi-circle?
'A semicircle is a half-circle that is formed by cutting a whole circle into two halves along a diameter line.'
According to the given problem,
Radius of the circle = 4 cm
Area of a semi-circle = [tex]\pi[/tex]r²/2
= ([tex]\pi[/tex] × 4 × 4)/2
= 16[tex]\pi[/tex]/2
= 8[tex]\pi[/tex] cm²
Hence, we can conclude that the area of the sector bounded by the 180 degree arc is 8[tex]\pi[/tex] cm².
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