C1
Two circles and C2 are drawn with the same centre. If d, is the diameter of C1
and d, is the diameter of C2, which of the following statement is/are incorrect?
C1
C2
(b) di > dz
(a) O Radius of C: > Radius of C2
(d) All are incorrect
(c) O Perimeter of C: > Perimeter of C2
(Please select all the right answers)
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Since circumference of circle = 2πr
⇒2=2πr
⇒r=1/πcm for both circles
From symmetry, perpendicular AB to
O 1 O 2 also bisects O 1 O 2
(O 1 is center for O 1 and O 2 lies on its circumference)
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