find area and circumference
radius =3.5
radius = 4.9
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Answer:
To find the circumference of given radius of 3.5 cm the following applies:
Circumference = Diameter * pi
To find the diameter of a circle you multiply the radius by 2
Therefore:
Diameter = 3.5 * 2
Diameter = 7 cm
Therefore:
Circumference = Diameter * pi
Circumference = 7 * pi
= 7 * 3.14
= 21.98
Circumference ≅ 21.98 *The reason I use the 'approximately equal to' sign is due to pi. If your teacher wants you to use the equal sign, just use it.
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