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MATHEMATICS MCQ

Arc Properties of Circles · ICSE STD 9 (ICSE - English Medium). 4 questions.

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4 questions · timed · auto-graded

MCQ 11 Mark
Assertion (A) : Two congruent circles with centre $O$ and $O^{\prime}$ intersect at two points A and B . Then $\angle AOB =\angle AO ^{\prime} B$.
Reason (R) : If a pair of opposite sides of a cyclic quadrilateral are equal, then its diagonals bisect each other.
  • ✓
    A is true, R is false
  • B
    A is false, R is true
  • C
    Both A and R are true
  • D
    Both A and R are false.
Answer
Correct option: A.
A is true, R is false
A
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MCQ 21 Mark
Assertion (A) : In the figure, two congruent circles have centres O and $O ^{\prime}$.
Arc AXB subtends an angle of 60 at the centre O and arc $A ^{\prime} YB ^{\prime}$ subtends an angle of 20 at the centre $O^{\prime}$. Then the ratio of arcs AXB and $A ^{\prime} YB ^{\prime}$ is $3: 1$.
Reason (R) : Congruent arcs of a circle subtend equal angles at the centre.
Image
  • A
    A is true, R is false
  • B
    A is false, R is true
  • ✓
    Both A and R are true
  • D
    Both A and R are false.
Answer
Correct option: C.
Both A and R are true
C
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MCQ 31 Mark
Assertion (A) : Two congruent circles with centre O and O' intersect at two points A and B. Then $\angle AOB =\angle AO ^{\prime} B$.
Reason (R) : If a pair of opposite sides of a cyclic quadrilateral are equal, then its diagonals bisect each other.
  • ✓
    A is true, R is false
  • B
    A is false, R is true
  • C
    Both A and R are true
  • D
    Both A and R are false.
Answer
Correct option: A.
A is true, R is false
A
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