# How do you find the shape of a rectangle of maximum perimeter that can be inscribed in a circle of radius 5 cm?

##### 1 Answer

Apr 27, 2015

**Define the problem**

Look at the figure below:

.

We will find the point

.

.

Perimeter,

In the question here,

.

Therefore, the problem is:

Find

**Solution:**

We find critical numbers:

Whe

Because