dimention to front view

Hi,

I have a front view of a fan and I want to give the dimention of its hieght. Therefore I need to give it from its base untill the top, and the top is the lid, which is a circle. Now, the problem is that insead of giving the dimention from the buttom to the top of the lid, it gives me the dimention from the buttom to the center of the circle (of the lid), and that's not what I wanted, that's not correct!
Can someone help me?

SolidworksDrawings And Detailing