If the circumference is 100 cm, then to get the diameter you need to divide by pi.
So...
100cm = pi × diameter
100/pi = diameter
diameter = <span>3062.77772486 cm</span>
Answer:

Step-by-step explanation:

<h3>
7×13=11U </h3><h3>
making U subject of formula you have </h3><h3>
91= 11U </h3><h2>
therefore U = 91/11= 8.97 </h2>
I am going to say 15 but I am not sure since there is no pic