^
/|90 \
/ | \
x/ | \z
/ | \
/____|90________\
4 9 <\pre>
x=______,________squaret root of
(answered by addingup) ____3_____________x______
(answered by Alan3354)...(answered by Alan3354)
...(answered by josgarithmetic)
| \
|45\
(answered by Alan3354)...(answered by Alan3354)
_______y_______(answered by Alan3354)
(answered by Alan3354)
(answered by ikleyn)