CirclesMathematics

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Question 1
EasyJEE

Thecentreofthecirclex2+y2=16is:The centre of the circle x² + y² = 16 is:

A. (0,0)
B. (4,0)
C. (0,4)
D. (4,4)
Question 2
EasyJEE

Theradiusofthecirclex2+y2=25is:The radius of the circle x² + y² = 25 is:

A. 5
B. 4
C. 3
D. 6
Question 3
EasyJEE

Thecentreandradiusof(x2)2+(y+3)2=9arerespectively:The centre and radius of (x-2)² + (y+3)² = 9 are respectively:

A. (2,3),3(2,-3), 3
B. (2,3),3(-2,3), 3
C. (2,3), 9
D. (2,3),9(-2,-3), 9

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