29. Abbreviating wapentake as “wp” and assuming a hide to be 110 acres, we set up the ratio 25 wp/11 barn

along with appropriate conversion factors:

(25 wp)

100 hide

1 wp

 

110 acre

1 hide



4047 m

2

1 acre



(11 barn)

1

×10

−28

m

2

1 barn



≈ 1 × 10

36

.