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Hanoi Open Mathematics Competition
2006 Hanoi Open Mathematics Competitions
7
computational with a circle (2006 HOMC junior Q7)
computational with a circle (2006 HOMC junior Q7)
Source:
July 18, 2019
geometry
circle
Problem Statement
On the circle
(
O
)
(O)
(
O
)
of radius
15
15
15
cm are given
2
2
2
points
A
,
B
A, B
A
,
B
. The altitude
O
H
OH
O
H
of the triangle
O
A
B
OAB
O
A
B
intersect
(
O
)
(O)
(
O
)
at
C
C
C
. What is
A
C
AC
A
C
if
A
B
=
16
AB = 16
A
B
=
16
cm?
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