dimensioning help please

I am trying to offset dimension extension lines.
I am doing this in a drawing. Im sure that its a simple thing and Im pretty
new to Solidworks (2003) sp0. Please help and thank you very much

|<------------1.125------------->|
| |
| |
/ \
/ \
/ \

similar to this (I hope it posts well). If you have a tappered cutout and
the angle is very small, I need to detail the bottom (narrowest) part. If i
do this with a normal dimension the extension lines cover the object lines
and it makes it look like they are pointing to the top of the angle. Is
this possible without haveing to draw little lines, dimension and then
override the dim text.