In the diagram below,
D
R
→
DR
D, R, with, \overrightarrow, on top is perpendicular to
O
P
‾
OP
start overline, O, P, end overline.

P
P
O
O
A
A
U
U
D
D
R
R
M
M
4.5
4.5
4.0
4.0
10.0
10.0
3.75
3.75
Find the area of
△
D
U
O
△DUOtriangle, D, U, O.
If entering your answer as a decimal, round your final answer to the nearest hundredth.