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Byju's Answer
Standard IX
Mathematics
Point, Lines, Plane and Solids
Properties of...
Question
Properties of nine point circle and pedal triangle
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Q.
Orthocentre of a triangle is
(
2
,
1
)
and the circumcentre is
(
7
2
,
5
2
)
then its nine points circle centre is..
Q.
The circumradius of a triangle is 3.5 cm. Then the radius of the nine-point circle is
Q.
The diameter of the nine point circle of the triangle with vertices
(
3
,
4
)
,
(
5
cos
θ
,
5
sin
θ
)
and
(
5
cos
θ
,
−
5
sin
θ
)
, where
θ
∈
R
, is
Q.
If
R
1
is the circumradius of the pedal triangle of a given triangle
A
B
C
,
and
R
2
is the circumradius of the pedal triangle of the pedal triangle formed, and so on
R
3
,
R
4
,
.
.
.
.
.
then the value of
∞
∑
i
=
1
R
i
, where
R
(circumradius) of
Δ
A
B
C
=
5
is:
Q.
The pedal equation of the circle
x
2
+
y
2
=
4
with regard to the point
(
2
,
0
)
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