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Mathematics
Mathematics
Problem
In a circle with centre
O
O
O
,
M
M
M
is the midpoint of chord
P
Q
PQ
P
Q
. What must be true about
O
M
OM
O
M
? a)
O
M
=
O
P
OM = OP
O
M
=
O
P
b)
O
M
⊥
P
Q
OM \perp PQ
O
M
⊥
P
Q
c)
O
M
∥
P
Q
OM \parallel PQ
O
M
∥
P
Q
d)
O
M
OM
O
M
bisects
∠
P
O
Q
\angle POQ
∠
P
O
Q
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