Answer:
area ≈ 6.3 units²
Step-by-step explanation:
Calculate the area (A ) of the sector as
A = area of circle × fraction of circle
= πr² × [tex]\frac{45}{360}[/tex]
= π × 4² × [tex]\frac{1}{8}[/tex]
= 16π × [tex]\frac{1}{8}[/tex] ← cancel 8 and 16 by 8, leaving
A = 2π ≈ 6.3 units² ( to 1 dec. place )
