Coordinate Geometry
> Question
VSA
1 mark
Year: 2020
Easy
CBSE Class 10
coordinate-geometry
distance-formula
Question
The distance between the points
(
a
,
b
)
and
(
−
a
,
−
b
)
is ________.
Solution
1
d
=
(
a
−
(
−
a
)
)
2
+
(
b
−
(
−
b
)
)
2
=
4
a
2
+
4
b
2
=
2
a
2
+
b
2
+1 mark
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