A lot measures 100x122x104x149. How lots acres is that?


A square plot of ground, 208.7 feet on a side, will cover an acre. An American football field, 360 foot by 160 feet, is about 1.3 acres ... see one here..

http://en.wikipedia.org/wiki/Acre


by that reckoning, your lot is 204 x 271 or 55,284 sq ft...

the football corral above is 57,600 squ ft. so I'd say just in the region of 1.2 acres for your lots together..close.just a little smaller than the football paddock.(check my math!!.. *smile*)
Calculate the square footage of the area. Square foot is a measurement of area, so the formula uses two numbers--the length and the thickness. Make sure both measurements are in feet and multiply: length (ft.) x wideness (ft.) = square feet
Step2
Convert from cubic feet to square foot if necessary. Divide the number of cubic feet by the depth (or height) of the nouns to get the square footage. Since the formula for cubic feet is length x thickness x depth/height, dividing by the third dimension will give you the area.
Step3
Remember the number 43,560. That is the number of square foot per acre.
Step4
Convert square feet to acres by dividing the number of square feet by 43,560. The formula looks resembling:length x width/43,560= acres.
Answers:    just over a third of an acre
Are these perimeter dimensions in foot?