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Olenka [21]
3 years ago
6

PLEASE help fill in the blanks for geometry!!!

Mathematics
1 answer:
EastWind [94]3 years ago
5 0
Since a sector is a fraction of a full circle, the ratio of a sector's area A to the circle is equal to the ratio of the __central angle__.

The proportion can be written as A/ πr² = ∅/ 2π. 

Multiply both sides by πr² and simplify to get ∅/2 * r²
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