What is the largest area of a circle that can be made from a piece of thread 25.2cm long assume no knot

Explanation:

Here we want to find the largest area of a circle that can be made from a piece of thread 25.2 cm long, assume no knot .

This means that the circumference of the circle must equal to the length of the thread, so we can write:

L = 25.2 cm

And the circumference can be written as:

where

r is the radius of the circle

Solving for r, we find the radius:

The area of a circle is given by the formula

So in this case, we find:

2b2t

explanation:

2b2t

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