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mel-nik [20]
3 years ago
13

Can somebody help solve either of these?

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0
First one:
The circumference of the whole circle is (2π x the radius), 
and 60° is (60/360) = 1/6 of the whole circumference.

Second one:
The area of the whole circle is (π x the radius²), and
the 40° sector is (40/360) = 1/9 of the whole area.

I hope this is enough help.
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