prove RT= 3/2 OS
GIVEN / I ALREADY PROVED:
ABCD square
T and S orthogonal projections
RT OS parallel
R midpt of AO
![prove RT 32 OS GIVEN I ALREADY PROVED ABCD square T and S orthogonal projections RT OS parallel R midpt of AO class=](https://us-static.z-dn.net/files/d44/68d49428d4c624d260805c07d14a4421.jpeg)