find the radius of a circle is(-5;4)and which passes through the point(-7;1)
Answers
Answered by
1
Answer:
OA=
(x
2
−x
1
)
2
+(y
2
−y
1
)
2
=
(−7+5)
2
+(1−4)
2
=
(−2)
2
+(−3)
2
=
4+9
=
13
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