Question

Giving away all of my points to whoever answers this right

1.Given the circumference of a circular object, how can your find the area of this object? Justify your answers with mathematical thinking.

2.Given the area of a circular object, how can you find the circumference of this object? Justify your answers with mathematical thinking.

3.Given the area or circumference of a circular object, how can you find the radius of this object? Justify your answers with mathematical thinking.

Answer 1

1. Circumference= 2πr
Hence, r = 1/2 * circumference ÷ π
And from this you can find
Area = πr^2

2. Area = πr^2
Hence, r = √ (area ÷ π)
And from this you can find
Circumference= 2πr

3. The ways to find radius are above ^