Here's what's going on here.
Keep im mind that Lewis structures are not meant to convey geometry, the are just helpful in determining geometry!
In the case of chloric acid,
However, the molecular geometry will come out the same regardless of which Lewis structure you use, so I'll just pick one to make things clearer.
Notice that chlorine is bonded to three other atoms, all oxygen atoms, and that it has one lone pair attached, and so its
The chlorine atom is surrounded by four regions of electron density, which means that the geometry around the chlorine atom is trigonal pyramidal.
The oxygen atom that has the hydrogen attached is also surrounded by four regions of electron density: two bonds, one to hydrogen and the other to chlorine, and two lone pairs of electrons.
Therefore, you can say that the chloric acid molecule has a trigonal pyramidal geomety for the chlorine atom and a bent geometry for one of its oxygen atoms.