+118673 How many do you think?
You can count just as good as anyone else here. Give it a go.
+1713 A hint- try using casework!
Divide it into cases of 1 by 1, 1 by 2, 1 by 3, etc...
+321 I'd give my estimate as 19+16+13+10+7+4+2+8+4+4+2+2+1+2+1 = 95 rectangles.
