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NDA · Maths · Circles
NDA Circles — Formulas 1
Question
1
of 12
1.
Given the centre
(
h
,
k
)
(h,k)
(
h
,
k
)
and any point
(
x
0
,
y
0
)
(x_0,y_0)
(
x
0
,
y
0
)
on the circle, which gives
r
2
r^2
r
2
?
A
r
2
=
(
x
0
+
h
)
2
+
(
y
0
+
k
)
2
r^2=(x_0+h)^2+(y_0+k)^2
r
2
=
(
x
0
+
h
)
2
+
(
y
0
+
k
)
2
B
r
2
=
(
x
0
−
h
)
2
+
(
y
0
−
k
)
2
r^2 = (x_0-h)^2 + (y_0-k)^2
r
2
=
(
x
0
−
h
)
2
+
(
y
0
−
k
)
2
C
r
2
=
(
x
0
−
h
)
2
−
(
y
0
−
k
)
2
r^2=(x_0-h)^2-(y_0-k)^2
r
2
=
(
x
0
−
h
)
2
−
(
y
0
−
k
)
2
D
r
2
=
∣
x
0
−
h
∣
+
∣
y
0
−
k
∣
r^2=|x_0-h|+|y_0-k|
r
2
=
∣
x
0
−
h
∣
+
∣
y
0
−
k
∣
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