Mathematics, 12.03.2021 23:10 HecptyAura

The circumference covered by a radar signal can be represented by the expression 400π miles. What is the approximate length of the radius of this circumference? A 20 miles
B 200 miles
C 127 miles
D 40 miles

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The circumference covered by a radar signal can be represented by the expression 400π miles. What is...