Calculate circumstance radius of circle whose diameter is 18 ?
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Answer:
1. Circumference = 56.52 units
2. Radius = 254.34 units^2
Step-by-step explanation:
Diameter = 18 units
Radius = (D/2) units
= (18/2) units
= 9 units
Circumference = 2πr
= ( 2 * 3.14 * 9) units
= 56.52 units
Area = πr^2
= (3.14 * 9 * 9) units^2
= 254.34 units^2
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