What is the volume of a cube with an edge lenght of 7.3cm?

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

How to use order of operation in 20 divide by 4 multiply 5 = 1

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.