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Q: Describe How you could estimate the area of a circle whose radius is 1 cm?

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A circle can have a unit of length which could be either a measure of its diameter or radius, or of its circumference. Or the circle could have the unit of area.

A square does not have a radius. A square, with sides of length x units, can have an inscribed circle. Such a circle would have a radius of x/2 units. Or the square could have a circumscribing circle. This would have a radius of x/sqrt(2) units.

You cannot. The circle could be located anywhere on a plane.

The radius of a circle is the distance from the center of the circle to the outer edge Also known as half of the diameter. The diameter is the distance from opposite edges of the circle going through the centre.

Formula of Circumference of a circle: 3.14*Diameter of the circle. You could also do: 3.14*3.14*radius.

It depends on the shape that is removed. It could be a smaller circle, whose radius is sqrt(2/3) = 0.8165 of the original radius, Or a circle with a hole with radius sqrt(1/3) = 0.5774 of the original radius cut out of it, Or a wedge making a central angle of 120 degrees removed from the circle, Or more complicated shapes.

It could be an oval or a circle.

the circumference of a circle is 3.4 but with the radiusof 3.5 it is........................... well i was hoping you could tell me!!!:)

Your question implies that it could be the radius, diameter or even the chord of a circle in which the diameter is the largest chord of a circle.

Divide the diameter by 2.

i am not sure but i could surly use some help

Yes.You could also state that the circumference is directly proportional to the radius. The proportionality constant is (2 pi).

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