Question

Geometry help

Answer 1

I'd go with 35

Answer 2

use the pythagoren theorem :|
http://www.samosguide.com/images/listing_photos/44_pythagorean_theorem.gif

Answer 3

bare in mind BO is 37

Answer 4

BO=12+25=37
AO=12
\[AB ^{2}=37^{2}-12^{2}=\left( 37-12 \right)\left( 37+12 \right)=25\times49\]
\[AB=\sqrt{25\times49}=5\times7=35\]