Olivia is buying packages of balloon for $3 each in the website charges and $8 shipping fee her budget is $26 .what's the format
1 answer:
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Answer:
≈ 565.5 units²
Step-by-step explanation:
The area (A) of the shaded sector = area of circle × fraction of circle
A = πr² × ← r is the radius
= π × 20² ×
= 400π × 0.45 ≈ 565.5 units²