AlimBas8
29.04.2021 •
Mathematics
HELPPPPPP please. Trigonometry I don't understand
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Ответ:
≈ 84.8 cm²
Step-by-step explanation:
The area of the shaded region is calculated as
area of circle - area of unshaded sector
area of circle = πr² = π × 6² = 36π
unshaded area = area of circle × fraction of circle
= 36π ×
= 36π × 
= 9π
area of shaded region = 36π - 9π = 27π ≈ 84.8 cm² ( nearest tenth )